* In every experiment there are variables that affect the way an experiment will go. The three types of variables that are measured are Independent, Dependent, and Controllable variables. In my experiment the Independent variable is the three different models of paper airplanes that I have chosen to make and experiment with. The Dependent variable includes the distance the paper airplane goes. The Controlled variable is me making sure that I throw the paper airplanes from the same starting point a well as the same weather conditions. The controlled variable is the one that cannot be changed because it would affect the other two variables. In this case I threw them in my house since I have a very long hallway that leads into the front family room and there is no furniture that would interfere with the results.
The natural experiment is seen by some as a non-experiment. It does not test an independent variable but rather analyses the variables on offer. This has the highest level of ecological validity because there are no test conditions as such.
1. For this experiment, what were the independent variable and the dependent variable? What were the constants?
There are four main characteristics of the scientific method: observation/measurements, make an assumption, test the assumption, and revise the assumption. The first stage we make an observations. For instance, I notice that my peppers in my garden are not growing well. I am going to assume this is because I did not water that area well enough. So I am now going to test my assumption. This is done by watering the peppers in my garden more frequently. Lastly, I am going to see if my assumption was correct. If my peppers only needed more water, they will begin to grow more rapidly. It is also possible that my assumption was wrong, and that my peppers were getting enough water; however, there could be something wrong with the soil, temperature, etc. These are the four main characteristics of the scientific method; it is important to note that our assumptions sometimes be wrong, thus it is always important that we test our assumptions to make sure we are correct.
12. Why are both natural AND controlled experiments necessary to increasing scientific understanding, and how do their roles in the scientific process differ?
The scientific method is used during experiments to find a conclusion and or reason as to why an event or something happens.
The dependent variable is observed to see how it changes in response to the experimental variable.
Dependent variable- jar volume after the egg is out (ml). Controlled variables- jar, same amount of water and corn syrup, same number of days it stayed there, same grade egg, same process, same surface we put them on. The experimental group are both the eggs because they both got tested on. We didn't have a control group because we didn't have an egg that didn't go through a test. The experimental group is the group you experiment on. The control group which doesn´t get tested
Describe what you understand by ‘independent variable’ and ‘dependent variable’ in a scientific study? ( 5 points) An independent variable is something you have control over, what you can choose and manipulate. It is a variable that stands alone and doesn’t change by other variables. Although in some cases, you may not be able to manipulate the independent variable. It could be already there and or fixed. A dependent variable is the variable that’s being tested in an experiment. If the experimenter changes the independent variable, the change in the dependent variable is observed and recorded. For example a scientist is testing the effect of light and dark on the behavior of moths by turning a light on and off. The independent variable is the amount of light and the moth’s reaction is dependent variable. A change in the independent variable (amount of light) directly causes a change in the dependent variable (moth
Every day, there are scientist/ researchers conducting experiments, or studies, in order to try and prove facts about everyday life. In conducting these experiments, there are the normal, ethical experiments that have continuously gone to prove many different facts that most of us might have not even noticed about ourselves or one another, and then there are the few experiments that are deemed to be unethical and, although still have shown and proved to us different facts about ourselves, really can not be replicated once again because of the amount of controversy caused by them. The experiments and studies such as the Stanley Milgram Obedience experiment, the Stanford Prison and Guards experiment, the Bystander Effect, the David Reimer
1. The hypothesis of this lab was, ‘If the pinto beans are in constant light, then the number of seeds germinated will increase faster.’ Based on our data, we found that our hypothesis was wrong. Our data didn’t support our hypothesis, but it does support why our hypothesis was wrong. The most important data that supports this is the fact that 3 seeds under no light germinated and 1 seed under constant light germinated. (We’re not going to look at constant light right now, because that as our control group.) Our hypotheses states that we thought more seed under constant light were going to germinate than seeds under no light. The number of seeds germinated is the most ‘important’ piece of data because it is the Dependent variable, it’s what we are trying to measure, or figure out.
* The Independent part is what you, the experimenter, changes or enacts in order to do your experiment. The dependent variable is what changes when the independent variable changes - the dependent variable depends on the outcome of the independent variable.
Were your hypotheses right or wrong? Tell how those hypotheses would have to be modified in another experiment.
Denis Diderot once said, “There are three principal means of acquiring knowledge... observation of nature, reflection, and experimentation. Observation collects facts; reflection combines them; experimentation verifies the result of that combination.” Denis Diderot discusses the overall way to obtain information. When wanting to know statistics, numerous experiments need to be performed in order to provide accurate results. Through the abundant of experiments performed, human experimentation is one of those tests. Upon hearing the words “human experimentation,” individuals automatically assume grotesque, immoral, and unethical tests being conducted on people. However, this is untrue because experimenting on humans is beneficial to the citizens
Science is the knowledge gained by a systematic study, knowledge which then becomes facts or principles. In the systematic study; the first step is observation, the second step hypothesis, the third step experimentation to test the hypothesis, and lastly the conclusion whether or not the hypothesis holds true. These steps have been ingrained into every student of science, as the basic pathway to scientific discovery. This pathway holds not decision as to good or evil intention of the experiment. Though, there are always repercussions of scientific experiments. They range from the most simplistic realizations of the difference between acid and water to the principle that Earth is not the center of