Write about at least three things you learned about experimental design over the last two days in class. Make sure to use complete and detailed sentences with appropriate vocabulary.
Your post should be at least 2 paragraphs (i.e. at least 10 sentences in total). Make sure to EXPLAIN your thoughts and provide EXAMPLES. The more detailed you are the more this shows your deep understanding of concepts.
DUE Monday, September 21st.
63 comments:
Katherine E.
In class,I've learned that an experimental design or variable is your testing subject. I've also learned that you control varable or design is the one yoyur not testing. For example, your experimental design would be a flower in a vase, with flower food, and water. Your control varable would be a flower in a vase, with regular soil and water. This way you can tell,in say about a week, you can see and tell which flower grew the most. This way you know which theory/design to use in the future or for other matters. You also need 3 experimental designs and 1 control design in order for your experiment to work out right and be correct. This shows what i have learned about experimental designs the past 2 days in class.
One of the three things that i have learned about the experemental design is that everything has to be in order. You cannot write in any way you want to. The second thing is that there are many rules when it comes to making experimnets.
The third and the final thing is that there are two types of experiments. The controled and the experimettal group.
I think that the reason for all of this is for the experminet to as good as possible and also safe to work with.
In the past days of Living Environment, I learned some safety rules so we dont end up getting hurt and so we dont damage any expensive equipment. We also learned about some hazzards in our cassroom thet we never knew were hazzardous.We also learned about some caution symbols and some signs to help us know what hazzards are contained in an experiment. We discussed some materials we went over in class last year. We also went over the last year Living Environment Regents
I learned that when doing lab experiments there are a lot of safety precautions that you must be aware of, for your own safety and others safety as well. If something catches on fire you should make and orderly line an exit the room at the nearest exit, you should listen to your teacher for instructions. I also learned that you should also protect your body when doing experiments. You should wear goggles to cover your eyes so nothing gets in them, and wear gloves for your hands so nothing gets on them that might irritate you. I feel that these safety rules are important so you can protect yourself and others from danger. The third thing I learned about “experimental design”, is some of the skills scientist use while conducting an experiment. Some of them are; to have a hypothesis, analyze, and to observe. I think that it’s important to know what these words mean to help you use them when doing an experiment.
-Brittany Morley
i learned that an experimental group is a group or the group that is being tested- gettint the actual experiment. i also learned about a control group witch is the group that isnt being tested, but rather being used to check the vatality of the experiment.
During the last two days of class in Living Enviorment I learned a few things about experimental design. Today in class we learned about the "Scientific Method", "Experimental Groups", and "Control Group"
The Scientific Method is a written paper containing a hypothesis, experiment, data, conclusion, publish & report, and extend. Basically it's something you write after conducting an experiment.
An "Experimental Group" is the group in the experiment that is being tested. The "Control Group" is NOT being tested. It is just used to compare and check the validity of the experiment.
- Sia Kalamaras, period 4.
[ PLEASE DONT COPY PASTE AND CHANGE MY COMMENT AROUND DO YOUR OWN WORK -__- ]
Learing about the scientific method basically covered everything (I think) I needed to know about experimental design. The scientific method breaks down to several subtopics; so to speak. First, you must obviously have to come up with a question, a problem to based on your observations. Then you have you hypothesis, what you think will happen. Nxt you start the actual experiment, before all of this you must have your materials and know the procedure. The materials are the supplies you'll need to conduct the experiment. The procedure is the directions or steps you take to conducting this experiment. Now you have your data, the information you gather. After all of this you have your conclusion, which is when you wrap everything up and draw your desicion. Then you have your publishing and reporting. This is when you write a formal report or journal entry about you experiment. Now you extend on this, meaning you have additional changes, maybe unanswered questions. This is the scientific method.
I find the scientific method to be very organized,neat, and precise. This is due to the fact that everything goes in order, nothing is done haphazardly.
Another thing I learned about experimental design is that you have your control group and experimental group. Control group simply means that this is your norm in your experiment. This is the "not tested on" part of your experiment. The experimental group is the complete opposite. These are the examples you test on and experiment on.
Knowing the scientific method and control and experimental groups is important for experimental design because it makes sure your experiments are done right and in an organized manner.
- Kathleen G.
Class: 903
P 4 & 3(on wednesdays)
d.seizinger The first thing i learned in experimental design is control group.Control group is a group that is not being tested,but rather being used to check the validity of the experiment.The group does not recieve testing material.An example of a control group is a flower in a vase with the same amount of tap water(600ML). The second thing I learned in experimental design is experimental group.Experimental group is the group being tested-getting the actual"experiment". An example of experimental group is a flower in a vase with tap water 600ML with flower food.The last thing I learned in experimental design is what is the scientific method.The scientific method is a method based on observations.
One thing I learned about in Living Environment is that 'experiment' is in the Scientific Method. I did not remember learning what the Scientific Method was, and today I learned exactly what it was composed of.
Another thing I learned was the difference between an experimental group and a control group.I now know that the control group is the only natural part of the experiment, the one that stays the same without any alterations applied to them. The last thing I learned about was the proper safety rules to be aware of when conducting an experiment in a lab. I learned many safety rules lat year, but this year I learned more, and ones that were also quite important.
I learned that in order to have a positive outcome in an experiment, a scientist should follow the scientific method. While following the scientific method, scientists can have a step-by-step outline as to what processes they have to adhere to in order to be considered a liable experiment.
Another thing I learned was that scientists need to have an experimental group and a control group. An experimental is the group that is being subjected to the experimentations. The control group, on the other hand, is the group that is being used to check the potency of the entire experiment because this group isn’t tested.
One last thing I learned is that scientists need to have a conclusion once they have completed their experiments. A conclusion consists of a summary of the results of the experiment and is, basically, the answer to your original question (a.k.a. the problem). By having a conclusion, scientists can sum up their work for themselves and others in order to get a better understanding of the experiment that they have completed.
-Sara D. (Period 4)
the first method I learned about experimenting is to develop a question based on your observation. This means to investigate and develop that question. An example of this is...How does global warming affect artic creatures? Another method I learned in experimenting is to hypothesize which means to predict or guess what you think is gonna happen next. An example of that is... I think if more of the ice glaciers melted polar bears would become extinct.
The third thing I learned about experimenting was using materials and procedures. These items you need to help you to get through the project.
-Chelsea M.
DEFINE A PROBLEM: what is the question you want to experiment on? you need a problem to do an experiment on, example How do you know if a turtle is male or female?
FORMULATE HYPOTHESIS: afetr your have your question and the required data, try to group the data together and conclude to a final answer with an educated guess.
ORGANIZATON: organize your data in a right order like in groups or the type of species etc. by organizeing your data , it is easy for you and others to read and understand your experiment.
Christina.Vlahaki.-931 living Env..
Throught the past 2 days i've learned lots of things. Like when you do an exparament your hypothesis to help you and a Procidure wich helps you make your steps as you going threw the prosess. You will also need to publish your exparement to show those that want to know. yor data will show the information that you collected in the exparament but before you even start your exparament you need to have a question to find out what you are looking for.
I think what we are leaning in class is interseting because most people do half of the exparament that will be needed.. But also i think that when you have your data its intresting because you are orginized...
The three things that i have learned in Living Environment are experimental and control grouping and variables. A experimental group is a group when the researcher is testing on the experiment, however control grouping is the experiment which the researcher is not testing on, but is being used to check the validity of the experiment. The variables are independent and dependent. A independent variable is what the researcher cannot control, and the dependent variable is the outcome of what the researcher makes of it.
Homework Assignment-Sept 17
During class for the past 2 days we have learned a lot about experimental designs. Experimental designs are the elements that build up a good experiment/project. The elements of a great experiment are the Question, Hypothesis, Materials, Data, and finally, Conclusion. The Hypothesis, is basically your educated guess. Its what you think will happen through out the experiment. The data, is all the information you will be collecting about your project, such as, if you were doing an experiment on whether or not plants grow faster in the sunlight you would collect the data as shown, (Plant A- No sunlight, Plant B- Sunlight. Plant A has no change visually it looks as if it is rusting/dieing, meanwhile plant B is looking healthier than ever, petals are looking more lively with color.) The Materials section is where you jot down what you used in your project, like a 2 vases, 2 roses, water, plant food(how much plant food). Last but absolutely not least, your conclusion! The conclusion raps up your whole project so you better make it good, it explains whether or not your hypothesis is correct or not and what happened to your experiment, like, if the plant died and if the one with sunlight grew faster.
In summary, we have learned a great deal of work from Ms. Mitsiadis's class. We have found out about which category to put specific data, and how to organize your project to make sure everything is in the right place. Also, we have learned the definitions of Hypothesis, Conclusion, Data, Materials, and question. Basically, in my opinion we are getting familiar with projects and what the teacher expects to have on them, also, we are figuring out, how to organize our experiments in a suitable manner.
In the last two days of class, I had learned about experimental groups and control groups. The experimental group is the one that is being tested. The control group is the one that isn’t being tested; it checks the validity of the experiment. We had an example about these two topics which was that the tomato that uses light to grow is the experimental group. And when the tomato uses no light to grow that is the control group. I had also learned about the independent variables and the dependent variables. The independent variable is when the researcher controls it. The dependent variable is when the outcome of the researcher is being tested. I had learned a lot in class since these two days. I was confused at first, but I think I got the hang of it.
ashley u. Pd 4.
One thing that I learned about experimental design over the last two days in class was about the scientific method and how it helps you write a good explanation about the experiment. For example using the scientific method helps you break down the experiment into steps to help you.
Another thing that i learned about experimental design over the last two days in was was about the experimental group and the control group.The experimental group is the group that is being tested or getting the actual experiment.The control group is the group that is not being tested.The control group does not recieve the testing material.For example if you wanted to test wheather adding flower food to your freshly cut roses would prolong the life, the control group would be the roses and the experimental group would be the flower food.
well in the class i learned the rule's of the lab. I learnd that we cant EAT the class room. We can't fool around in the class room. And if any thing hppen's in the class room. The student need to call the teacher. And i completely agry with that.
one of the thing's i also learned was that when a student is doing an experiment. And in the experiment goes wrong, we will have to call the teacher. And i learned that there are plenty of hazords in the claa room that can happe at any time. Like there can be an electrical fire, or the paper can catch on fire durring a expriment. Ant the other thing i lerand as that we migh be openig frogs in this class, and i thikl thats mest up.
Glad to see all of the comments. Make sure you follow the guidelines carefully. Providing details and examples help show your understanding at a deeper level.
i learned about saftey precautions, so i can keep myself from harm & my class mates. for example if your hair is down and your working with fire you should tie it up or pull it back. i learned about the saftey signs that tell you if something is highly flamable, or if it is bio-hazerdious. i also learned about control groups & expreimental groups. control groups dont do an experiment, the experimental groups do. also, that you should have 3 experimental groups & 1 control group.
-->Alexis Savva
In class we learned that an experimental design is your testing subject. We have also learnt that your control is the one you are not testing. If you have a window and want to see if it cleans better with water or window cleaning supplies (Windex). The control would be to not clean it at all. This way you will have tree test subjects. One with water, One with Windex, and One without anything. The Independent variable will be the test subjects and the Dependent variable will be the amount of clean it is. This is what we have learnt this week.
In these past 2 classes, the first method I learned is how to create a problem. An example of this is, how would a sunflower react to changing its natural habit such as using a red light? Another method I learned is how to correctly state a hypothesis. For example, "If I were to change the sunflower's natural enviroment, I think it would not survive."
Giorgina Orofino, period 2.
I learned 3 things about experimental design in class. First, experimental design is when you test an experiment to see how it works and what happens.One good experiment would be how much faster does a flower go with more sunlight, compared to flowers with less sun light. A control variable is when nothing is added or changed to the flower. So the control flower is when it has no sunlight.
The last example I have for an experimental design is that you have to observe carefully of what is happeneing. If you dont, you can make many mistakes. I find that without the controlled and the experemental variable, it will be hard to make an experiment right, or impossible. It will make an experiment easier if you record the data you discovered during the experiment. You should also double check the the work you did with experiment to see if its actually right.
In class I have learned many different things about experimental design. Such as that it consists of the scientific method. The scientific method consists of the hypothesis, data, and conclusion.
I also learned that the control group is the group not being tested and the experimental group is the opposite. Which means it is the group being tested. I also learned that the independent variable is something the researcher can control and the dependent variable is the outcome the researcher is testing.
Those are some of the things that I learned in class over the last two days.
Allen Sharma Period 4
One thing I learned about experimental design, was that when you find the experimental design it's always gonna be the one your testing.
The other thing I learned was about control variable. When you find the control variable its the one that your not testing. For example if you wanted to test wheather adding flower food to your roses , the control group would be the roses and the experimental group would be the flower food.
This is what I've learned in the past two days of school.
daniela s PD 3
Over the last two days of school we learned about experimental design which is part of the scientific method. The scientific method incluedes a question, problem, hypothesis, experiment, materials, procedure, data, conclusion, publishing and reporting,and extend.
You must also know the controll group.
A Experimental Group is the group in the experiment is being tested on. The Control Group is the group that is being compared to. No chemicals or tests are being done on the controll group. In order to have more of a accurate answer to your quetion or topic you should have more than one (three or four) experimental design. One example of a controll and experimental group is, if you are trying to find out if a person can open and clothes a clothes pin more times when not doing a exercise befor or if doing a exercise before. The controll group is the group who is not exercising before opening and closing the clothespins and the experiomental group is the group that is opening and closing the clothespins after exercising.
during the past 2 days of class, i learned a lot. one topic that we learned about was the lab safety rules. i learned new lab signs, and what they meant. i also learned why it is important to follow specific rules in the lab. some rules i learned are to always have your hair tied up, never mix the test tubes with chemicals in them, wear goggles, dont distract others, etc...somethiing else that i learned is how to use the scientific method. i learned that while i am working on an experiment i shuld construct a hypothesis, observe, conclude, search data, plan a procedure and more. last, but not least i learned about independent variables, and dependent variables. i am still a little confused with that, but i will slowly get the hang of it. ;) Nelofar A. pd 4
These past 2 days in Living Environment we learned about experimental design. Three things that consist in experimental design were control groups, experimental groups, and variables. Before these past 2 days in Living Environment, I didn't know what a control group is or an experimental group. But with the independent and dependent variables, I kinda knew what it was, but this helped me better understand it.
A control group is the group not being tested on. Just say you were doing an experiment where if you put glow sticks in different temperatures of water, which glow stick would glow brighter. The glow stick in the room temperature water would be the control group because it's not being tested on.
An experimental group is the group(s) being tested on. With the glow stick experiment, the glow stick in cold water and the glow stick in hot water would be the experimental groups because they are being tested on.
The independent variable is the variable that the scientist manipulates. For example, the temperature of the water would be the independent variable because the person doing the experiment is picking the temperature of the water.
The dependent variable is the variable that is caused by the independent variable. It is pretty much "dependent" on the independent variable for allowing it to occur. In the experiment with the glow sticks, the dependent variable would be how bright the glow stick is, because the brightness of the glow stick is caused by the temperature of the water, which is the independent variable.
-Colleen Fox
One of the things I learned in Living Enviroment is that there are two groups. One is the expiremental group which is the group that is being tested. The other group is the control group. The control group is the group that is no being tested but instead used to check the validity of the expirement. The two groups are both essential in an expirement.
Another thing I learned is the Scientific Method. The Scientific Method is a series of steps to create an expirement. The first thing you do is you develop a question. Then you make a hypothesis and test your question. After collecting all the data, you draw a conclusion and publish your results. Then you start over and create a bigger question and you restate the hypothesis.
Diego Huerta 902
I've learned a lot in Living Environment over the past 2 days that I haven't learned before. I have learned that there are hazards in our classes that ought to be fixed. I have also learned about the scientific method and the 7 steps towards that. There's Develop a Question, Hypothesis, Experiment(Materials and Procedure), Data, Conclusion, Publish, and Extend. I learned that an experimental group is the group that is getting tested. I learned that the control group is the group that is not being tested, but rather being used to check the validity of the experiment.
Another thing I learned is independent and dependent variable.
An independent variable is that the researcher can "control" this (x axis of the graph). For Example, If the plant is given flower food or not controlled and therefore is the independent variable. A dependent variable is the outcome the researcher is testing (y axis of the graph). It is dependent because the growth rate cannot be "controlled". When doing an experiment you can identify the different parts of it. You can identify the Control Group, Experimental Group, Dependent Variable, Independent Variable, Conclusions about your experiment, and Improvements you can make. This is known as Experimental Design. That is what I learned about in Living Environment in the past two days.
Gabrielle Cestone
Period 4
In the past few days I've learnt alot. I've learnt that scientists need to be very focused on what theyre doing. For ex when they do experiments they have to be carefull so the experiment does not go wrong. I have also learnt that in lab we should always pay attention to what the teacher is saying so we know what to do if there is a fire or any kind of emergency. About the experimental design i learned that there is an independent and dependent variable. I also learnt that there is also 1 control design.
Over the past few days in class, we have been studying different strategies of the experimental design. For example, the Scientific Method is a written statement with a hypothesis, experiment, data, conclusion, publish & report, and extend. It is the outcome after you have completed your experiment.
We were also taught many dfferent types of safety procedures, what to do and where to go just incase of a fire. We went over the hazard symbols and what each one means, for future protection . We learned the major differance between the control group and the experimental group. The control group is the group that you can physically change , and the experimental group is what happens or what you see change as your doing the experiment.
Alexandra K. Period 3
The scientific method is one thing I learned in Living Environment. Scientist use the scientific method to complete their experiments. We learned the seven steps to this method. These seven steps include developing a question, making a hypothesis, making and testing the experiment, collecting data, forming a conclusion, publishing and reporting the results, and extending the experiment. These steps allow an experiment to be done correctly, and there is a smaller chance that it will be uncompleted.
In class we also learned we also learned about the control and experimental group. These two groups are needed in an experiment. The experimental group is the group that is receiving the test, or is getting the actual “experiment”. On the other hand, the control group does not receive the experiment and the testing material, but rather being used to check the validity of the experiment. The experimental group usually includes three testing groups, while the control group only has one. These are very important to include in an experiment.
I also learned about variables. Two types of variables are independent and dependent. The independent variable is the variable in which the researcher can “control” during the experiment. However, the dependent variable is the outcome of the experiment. To graph these variables on a graph to use as data, the independent variable goes on the x-axis and the dependent variable goes on the y-axis of the graph. This concludes the three things I learned in Living Environment over the past two days.
Melissa S.
In class, I've learned many different things. From safety rules in the lab, experimental designs and the difference of dependent and independent variables. I think the safetly rules was the most important topic we learned. Safety rules help us realize and know what are proper things to do if their is an harm to anyone around you. For example if there was a fire in the room, I would have to advise my teacher. I would let everybody know and form an orderly line in the nearest exit and wait for the teacher instructions. Experimental designs are experiments being controlled and divided into certain groups. I think, I learned more about the differnce of the dependent and independent variables. I contained the knowlege. Dependent depends on the experimental group and the independent is the leave it variable. I learned alot of information these past two days.
Ive learned alot in the past two days about lad experiments. I learned Lab safety so that i may not get hurt during an experiement. Also so that I know what to do and what not to do in a lab, meaning not only will i not get hurt but i wont break any of the expensive equipment. I knew what a control was but i never really understood what was the independent variable and the dependent variabler was. the idependent variable is the part in the experiment that is not effected by a change. the dependent variable is the part in an experiement that is effected by a change. I also learned Experimental design. The experimental design is the or in which you conduct your experiement. This oder is important in completing a well done experiement.
These past two days have been full of learning these three things an more.
-Natalie
Period 2
In Living Environment class,I've learned the experimental design,major rules and why it is important to do any laboratory activity and conduct it with knowledge.For example, it is always expected to wear your goggles when working with chemicals (including dissections)because you dont want any liquid or chemical to go in your eye so it doesn't cause irratation or blindness to the eye.In addition another thing I've learned in living environment class is know where all laboratory safety equipment is located in case you need it because if your teacher is dealing with another student and the lesson has began go get what you need in a appropiate manner without disturbing the class.
One of three things I have learned about experimental design over the last two days in class is about experimental groups. Experimental groups are the groups that are being tested (the ones doing the actual experiment). The control groups, which I have also learned about, are the groups that are NOT being tested on. They're used to check the validity of the experiment.
In the last two days in class, I have also learned about independent and dependent variables. The independent variable is the variable that the researcher can control. The dependent variable is the outcome of said independent variable.
- Alyssa R.
Period 4 & Period 3 (Wednesdays)
Class 902
Over the past few days I have learned a lot about experiments and scientists. I now know all of the rules that apply to doing an experiment and working in laboratories. Three specific things I learned are laboratory safety, what scientists use to work on experiments, and how to do an experiment.
There are many rules in laboratory safety. Some of them are to clear your work space, concentrate on the experiment, tie back all loose objects, etc. If these rules are not followed you may put yourself and others in serious danger and you could harm your environment.
Scientists have many ways in doing an experiment. They have to hypothesize, gather data and review and conclude the experiment. They use their knowledge and observations to analyze the experiments and once they did all the steps, they review and publish their work.
Experiments are very important. In order to figure out how something works, scientists have to do experiments. Without these experiments, we would never be sure about anything, as in cures for various diseases, how our bodies work and how plants grow.
over the two days in class i learned alot. the top three things i do remember the most about in the two days was very importent. like safety, the safey harzerds and the safety wile using the lab and the miterials wile doing experiments. ex. like tieing long hair up.
or. ex.don't mix or anything before the teacher tell you or if you ask.
another thing is control grouping .i remember taking an experiment and evaluating it in to groups with the right meanings.
the third thing is that wile using experimental design you can not put it in any order you want. it has to be in that order or unless your doing wrong.
-taylor
Michelle G. Period 4
Over the last two days in Living Environment,I've learned that experimental design is how you conduct an experiment. You have to know what is the control group,experimental group, independent and dependent variables, what conclusions can be made, and what improvement can be made. You also need to have a hypothesis to test first.
I also learned about safety precautions you have to take when your doing an experiment. Some lab safety rules that need to be followed so no one gets seriously hurt are don't eat any experiments, treat expensive equipment with respect so you don't break it,follow directions,wear gloves and goggles,use common sense, be focused on the experiment, and you must have prior knowledge. I think these rules are important so no one will hurt themselves while doing an experiment like by eating something bad for your body or doing something without gloves or goggles that might irritate your skin or eyes, and break the equipment you and others need to use. There are also Hazards in the classroom like fire,chemicals, and gas we have to be careful around. There are symbols we learned about that will tell you when something is dangerous or a bio hazard.
One more thing I learned about was steps you must go through when you do an experiment. First you need to have a question or problem, a hypothesis which is what you believe the outcome will be,the materials and procedure which is supplies needed for the lab and steps you will follow, Data which is the information you gather from the experiment, and a conclusion that should be a summary of your results. After that you will have to publish and report by either writing a formal written report or a journal article to share the outcome of your experiment.
During the first few days of class in Living Environment, I learned the safety rules so we dont get hurt in the lab also not to damage any equipment. The second thing that i learned in Living Environment is a experimental group and a control group. The experimental group is when its being subjected to the experiment and the control group is not being tested but checks the entire experiment.The third thing that i learned in Living Environment is the scientific method,its when you have on a piece of paper a data,hypothesis,conclusion which means your kinda using your 5 senses for a experiment that you used.
Sophia E. period 3
in class we learned that there were two kinds of variables in every experamint there is a control and 3 variables but most inportantly you need a hypothesis. the importance of a hypothesis is to explain what you are working on. the control is the variable that isnt changed nothing it is also known as the independent variable. the other three variablbles can be altered so u can see if ur hypothesis is correct. an example for a exparimant is which tipe of dog food helps with dogs shedding. you can do a test with one regular thing of dog food which will be your control. then you can do three diffrent tipes of special brands for dogs hair shedding. so after you collect all your data you collected and pute it into a final form so it can be published and for other people to know which tipe of dog food is better for there dog to stop it from shedding.
Another thing is when working in a lab you have to follow sertain rules and regulations. for example you have to look for any sighns that may indicate danger like open flames. besides flames there is also safty gear you have to wear like goggles a mask and a pair of gloves. the other things you will have to worry about chemical spills or any thing that could couse a hazard to your health.
one thing i learned about expertimental design is variables.I learned that the indepent variable is what the scientisct can control.The dependent variable is what the scienticst is measuring.If you have trouble finding the dependent variable then look at the independent variable and see what can't be done without it.Another thing i learned about expermental design is expermental group and control group. The expermental group is the grup that is being tested and the conrol group is the one thats not being tested buut is just there for valitady of the experminent.for example, someone is trying to figure out if there new invention to help clear acne works.They will test it on persona and use another acne cleanser on person b.Person a is the expermiental group. Another thing i learned is Hypothesis which is an educated guess this is what your testing. You want to see if your hypothesis is right and in the conclusion you state if it was right or wrong.
Three things that I've learned in class were, one, the scientific method. The scientific method includes the problem, hypothesis, conclusion, experiment, data etc. Two, I learned about experimental and control grouping. Experimental and controlled grouping are when you have a controlled experiment which the experiment is controlled, and the experimental group is when you put something in the experiment or something is added to it, and the outcome is out of your hands. That is why it is called "experimental", hence the word experiment. For example, let's say you buy two fish and you kept one in regular water and the other one in water with water conditioner. Your experiment would be to see which one lived longer. The fish in regular water would be the controlled group and the fish in the water with the conditioner would be the experimental group. Lastly, the third thing I learned, was about the independent variable and the dependant variable. An independant variable is when the researcher can control the outcomes of the experiment. A dependent variable is the one which the scientist is testing. For example, if a scientist where to test how much a plant can grow in a certain amount time, time would be the independent variable and the height would be the dependent variable. Those are three things that I learned in class.
Bianca R.
From the last 2 days of Living Enviorment I have learned the saftey prcedures when working on a lab and evn in an emergency. I have also learned the process of conducting an experiment. Through this I have learned the groups through which an experiment can be separated into. The Control group is the facts of the experiment that you are not testing and the experimental group is the group that is being tested. The indepentdant variables are the facts you can control in an experiment and an dependant variable is the outcome the researcher is testing.
In class,I've learned that the steps to follow a scentific method are to develop a question based on your observations.Next,you have to create a hypothesis, and gather materials & follow the procedures.Then, you've got to gather data and end with your conclusion.A scientist usually, publishes and reports their experiment.After that, they can always extend their experiment becaue they may have new questions & they can re-state a new hypothesis.
I've also learned that an experimental group is the group that is being tested-getting the actual experiment.A contorl group is the group that is not being tested but rather being used to check the validity of the experiment.The control group does not recieve the 'testing' material.An example of an experimental design can be that, the control group can be flowers in a vase with 500mL of tap water. The experimental group can be flowers in a vase with tapwater and 2mL of flower food added to the tap water.
The final things we disscussed in class were the independent and dependent variables & how to improve an experiment.An independent variable can be controlled by the researcher. A dependent variable is tested by the researcher.To improve an experiment you can reduce experimental BIAS ( bias is the tendency to have information sway in one direction.), redo the experiment, increase the sample size, or control the variables. those are a few things I've learned in Living Enviroment.
M. Rivera period 3
ning, class-902
over the last two day at class, I had learned many thing. I had learned about the lab saftey rules and sign symbol. Such as wearing gloves while during experiment. So, the chemicals that you are working on won't get on your hands. Symbols, like a animal on a hand would means that you have to take care and respect the animal. One thing that I learned, which i haven't forgot on this class is photosynthesis. i haven't heard that word for a very long time, and while doing the poster in class, i soon learned the full meaning of it. Photosynthesis means that when processing of a plant absorbed the light energy from the sun and send it to the bond of sugar. then plant can make sugar, which the energy was first absord by the leaves. i also start learning about experiment group and control group. the experiment group is the one being tested and the control group is the one NOT being tested. there's also thing coming back ro me, like things i learned from last year. i had almost forgot about the scientific method. but the class review that topic. i'm really glad that they did. there is so much more to learn, fo example; genes, DNA, molecules, and human body system!! i can't wait!
*posted at sunday, 6:00 pm
Maria V.
period4
In class over the last two days I learned about experimental design. The independent variable can be controlled, and the dependent variable is the outcome that the researcher is testing. An example of the independent variable is for instance, if a plant is given flower food or not, it is 'controlled' and therefore is independent. When the growth rate of the plant can't be 'controlled' by the researcher it is a dependent variable. I also learned that a hypothesis is a testable question. For instance, does the plant grow bigger with sunlight or none? This is basically what i learned in class about experimental design over the past two days.
I the past days i have learned a few things about experimental design. the first thing i learned was to be safe when experimenting. you have to wear goggles and protective clothing. Second is what different signs mean. Wether something is dangers or perfectly safe. Third is when you record what you are doing you have to do it in an order.
i think the reason for all of this is so we are safe and don't get hurt. It is also to be more professional and learn to record progress the way a real scientist would.
period 4
Anna.L:
931
Living Environment Homework:
The three things that I already know about experimental designs is that there are two groups called experimental group and control groups a experimental group is something that is being tested and a control group is the group that is not being tested for example if we wanted to see if tomato would grow just as quick as it would in sunlight we would probably plant one tomato seed in a spot with not sunlight and one in sunlight, the experimental group is the tomato seed that is not planted in sunlight and the control group is the one that is not being tested so that would be the tomato seed in the sunlight, something else that I learned in living environment is the variables like the independent variable which is something that can be controlled.
Within the two days of class, i've learned about the scientific method and experimental designs. I leanred that scientist need to use the scientific method in order to have a well played out experiment. This is because it is a step by step process that leads you to a very effective and conslusive conclusion.
Within the leson of experimental design, i learned about the independent and dependent variables. I learned that an independent variable is a variable that is controlled by the researcher. The dependent variable is the outcome of what the researcher is testing. Let's say that you wanted to test how water would effect the growth of a plant. The amount of water you add to the plant, that is your independent variable. The rate of how the pant grows, that is your dependent variable.
Abigail
period 4 class
In class i learned about scienific method.We learned about the different steps of scienific method.We learned about,develop a question,hypothsis,experiment,data,conclusion,publish and report and extend.We learned about experiment and control group.Experiment group is the group that is being tested.The control group is the group that is not being tested.We learned about independent and dependent varables.Independent varible is when the reseacher can control the experiment.Dependent means the customs the reseacher is testing.My thoughts on the lesson is very new to me.So i know that i will get it like i said it is very new to me.
Jessica Winowsky 3rd period
In class i've learned many things so far about experimental design. One of these things were variables. I learned that the independent variable is the variable the researcher can control, and the dependent variable is the outcome the researcher is testing. For example, if you're testing how many papers a workers can staple based on if they did or didn't drink a certain juice, the dependent variable would be the stacks of paper, and the independent variable would be whether or not the worker gets juice.
In class I also learned the scientific method. Which is to develop a problem, Create a hypothesis, Materials & procedure, your data, the conclusion, The final report, & any other additions or changes.
- Emma. M; period 4
MAYA L. period 3 class 902
I have learned many things about experimental design. One thing I learned is that there is always three experimental groups. The experimental group is the group that is being tested. When you do experiments there should always be three groups that are being tested.
Another thing I have learned is that publish and report is a part of the scientific method. In my old science class my teacher did'nt add this to the scientific method. The scientific method is a valuable tool that scientist use. It helps you when you are doing an experiment. The third thing I have learned is that there is only one control group in an experiment. The control group is the group that is not being tested. Its used to check the validity of the experiment. So when an experiment is being done one group does not recieve the testing material.
In living enviornment class, ive learned that the independant variable is the outcome the researcher is testing. I also learned that there are many steps to the scientific method. Some of these steps are, developing a question, hypothesis and data. A hypothesis is an educated guess. Also data is information that is gathered from the experiment. Another thing i learned is there are two groups, experimental and control. The experimental group is that group that does not get tested. This group is used to check the validity of the experiment. The experimental group is the group that is tested on. These are a few of the many things i learned in Living Enviornment class.
- Aliyah C. CLASS; 903
Three things I learned about experimental design over the last two days in class. One thing I learned was the expand step to the scientific method. This step is where you expand on the topic and maybe add things to the experiment making it a full experiment. This step was never used in my prior scientific methods, I never even knew it existed so learning this step is really good and it really shows a great step to the scientific method. Another thing I learned was that that the independent variable a variable in a functional relation whose value determines the value or values of other variables. An example of this is the x in y = 3x2. The dependent variable is the observed variable in an experiment or study whose changes are determined by the presence or degree of one or more independent variables. An example of this would be the y in y=3x2.
The last thing I learned between these two days was that there are two types of experiments, control and experimental group’s .the control group is a group of subjects that receive treatment in many variables but not receiving the active factor under study and thereby serving as a comparison group when results are evaluated. The experimental group is the group of subjects that are exposed to the variable of a control experiment. This is what I learned these two past days.
ante jakic
period 4
In the last two days of class I have learned the components of a good experimental design and control groups. I have also learned that independent and dependent variables play a major part inn experimental designs. An experimental group would be the group that is getting what is being tested. The control group would just be the group competing against the experiment. The dependent variable is the total number of things done in the experiment. The independent variable is if they got what the whole experiment was about.
In the last two days of living environment some of the things i learned where: first I learned the steps of the scientific method and how important it is to use it to help you find the answer to problems/questions. The other thing i learned was the difference between the experimental groups and the control groups (experimental design). The other thing I learned was the safety rules on how to be safe when working on an experiment. I thought all of this things i have learned are really important for us because we can be responsible and safe at the same time.
-Andrea Quintana Period 2.
spencer.r period 4 9th grade
One thing ive learned about the independent variables and the dependent variables is that the independent variable is that the researcher controls it. The dependent variable is the outcome of what ever is being tested. Another thing ive learned about is experimental groups and control groups. The experimental group is being tested. The control group checks if it works with the experiment. In class we went over an example on these topics that involved a tomato that uses light to grow and we said that it was the experimental group, And the tomato that uses no light to grow is the control group.
During the last few days in Living Environment, I learned a lot about experimental design. One of the things that I learned is the safety procedures that you need to follow when you are performing an experiment. If you don't follow all of the safety procedures, it can be very dangerous. Another thing that I learned was the Scientific Method. Most of the steps I already knew but some of them were added. The steps that were added are Publish & Report, and Extend. Another thing that I learned in Living Environment so far is the difference between an experimental group and a control group. An experimental group is the group that is being tested. A control group is the group that remains the same. I also learned the difference between an independent variable and a dependent variable. An independent variable is what the researcher can control. A dependent variable is the outcome the researcher is testing.
Elana C.
Period 4
Over the last couple of days in class, I learned about experimental design. I learned how to properly state a hypothesis, which is an educated guess. We can use the "If" and "then" format to help us state our hypothesis. I learned that the control group only has the constant variables, and the dependent variable. I also learned that the experimental group is given the constant, dependent, and independent variables. The experimental group compares itself with the controlled group. The dependent variable is the measurement or the outcome the researcher is testing. The in dependent variable is the factor the researcher can control, it is usually on the x-axis of the graph. I often get confused between the two. We can collect data from the experiment. We will then make conclusions and what we can improve on in the experiment.
For example, if I have an experiment with four plants, and 1 out of 4 is the control group, and 3 out of 4 is the experimental group and the experimental groups have fertilizer and the control group doesn't. The hypothesis would be, If 6 liters of fertilizer is added to a plant, then it will grow faster. The dependent variable in this situation is the growth rate of the plant. The independent variable is having fertilizer and having no fertilizer. The constant variables are the same type of plant, same size of the plant, the same type of soil, same amount of water, and same amount of sunlight.
One of the experimental groups would have 2 liters of fertilizer, one with 4 liters, and one other with 6 liters of fertilizer. The control would have no fertilizer. The control group would only have the constant variables. My conclusion would be that 6 liters of fertilizer added to a plant does make the plant grow faster.
Elizabeth J.
Period 4 (3 on Weds.)
I wasn't in on these days, this is a make up.
Three things I learned about experimental design is that an experimental design must have a control and one or more experimental piece. Another thing I learned is that all variable must be exactly the same except the one being tested, the independant variable. A third thing I learned about experimental design is that you must create and review safety precautions for your experiment.
Luca D. Period 4
One thing about experimental design that I learned in your class is that you have to have aprepared and valid controlled experiment before you do some thing.
Another thing that iI learned is that in experiments you use different variables and compare the differences to each other when you get your results over time lets say a week if you are testing something like flowers and how they gow with flower food.
A third thing I learned is that you need 3rd thing I learned is that your experiments have to be in order and you have to think a coule steps ahead about what you are going to do.
This is what I learned so far in your class.
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