Scientific Method
The first step of the scientific method
What is Identify the Problem
What is the responding variable or factor that may or may not change due to manipulation?
What is dependent variable?
What is True?
An experiment should be repeated by who?
What is by you and by others?
The plant grew 5 inches is an example of
Collecting Data
Usually written as an If...then...statement
What is Hypothesis
What is the term we use to describe the manipulated variable or factor that the experimenter intentionally changes?
What is Independent Variable?
T or F: Control variable and Control group are the same thing.
How many independent variables are you allowed to have in an experiment?
What is 1?
The ________________ involves a series of steps that are used to investigate a natural occurrence.
What is Scientific Method
You organize your data in to charts and graphs in this step
Analyze Data
If soil temperatures rise, then plant growth will increase. This is the dependent variable.
What is plant growth?
What you compare your experiment to
What is control group?
T or F: You are allowed to only have 1 Control variable in an experiment at a time.
What is False?
If soil temperatures rise, then plant growth will increase.
What is hypothesis?
If you find an error in your experiment as you are analyzing your data, what do you do?
What is go back and redo the experiment, correcting your error.
If soil temperatures rise, then plant growth will increase. This is the independent variable.
What is soil temperature?
I am going to test if the amount of coffee grounds effects the taste of the coffee and I am going to use the same type of coffee grounds each time. Coffee grounds are an example of what?
What is a control variable?
My hypothesis was right, the plant that got more water grew more than the plant that got less water - is an example of which step of the scientific method
What is conclusion?
A company wants to test a new dog food that is supposed to help overweight dogs lose weight. 50 dogs are chosen to get the new food and 50 more continue their normal diet. After one month the dogs are checked to see if they lost any weight. What is the independent variable?
What is type of dog food?
List all 6 steps of the scientific method
Identify the problem, Write a hypothesis, Experiment, Collect Data, Analyze Data, Conclusion
Find the independent and dependent variables in the following experiment: If you increase the number of times you practice shooting free-throws, then you will increase your chances of making a basket every time.
IV: # of times practicing
DV: Number of baskets made
Thinking about the hypothesis: If soil temperatures rise, then plant growth will increase. What might a control variable in this experiment be?
What is: the same plant, same amount of water, same amount of light, same soil, same fertilizer, etc.
In my paper airplane experiment, I am going to test the type of paper used to make the airplane and the width of the wings to see which airplane is best. Is this a valid experiment, why or why not?
What is no, because it has more than one independent variable.
I am going to test if the weight of a paper airplane makes it fly farther. I am going to use the same paperclips each time I add one to add weight. What would the paper airplane with no paper clips attached be?
What is the control group?