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WorksheetsHoward's Controls and Variables
Total questions: 20
Worksheet time: 12mins
I am doing an experiment to see what happens when I leave an egg in a jar of vinegar. Each day I will take observations to see how the egg changes. What type of observations am I making?
Quantitative
Qualitative
Which statement below is a hypothesis?
My dog can run 1 mile in 10 minutes.
Twins can finish each other's sentences.
If I add baking soda to my washing machine, then my clothes will come out cleaner.
Water can remove dust.
I am conducting an experiment to see how many tomato plants I can grown in 90 degree weather. After two weeks I count how many tomatoes are on the plant. What type of data is that?
Quantitative
Qualitative
I am doing an experiment to see if giving kids candy at lunch will make them more hyper. The kids are split into 2 groups.
I give Group A a healthy lunch and a candy bar. I give Group B a healthy lunch and no candy at all. Which group is my control group.
Group A
Group B
I am doing an experiment to see if students study for 15 minutes a day, will they get better grades. What is the DEPENDENT variable in this experiment? (Remember the dependent variable is what is being measured)
Students
The student's grades
Study Time
Students height
One way to state a hypothesis is an IF and ________ statement.
maybe
After conducting an experiment and analyzing the data you can come to a _______________.
conclusion
end point
In an experiment, there are usually two groups being tested. What are the two groups we have studied.
Control Group and Independent Variable
Control Group and Experimental Group
Independent Variable and Dependent Variable
The variable that you are testing out, changing, or introducing is the________________.
Control group
independent variable
Data
dependent variable
Controls don't
receive experimental treatment
keep things the same
keep the experiment the same
keep procedures the same
What is the independent variables' definition, and how many should there be?
what the scientist thinks; 1
what the scientist observes; 1
what the scientist changes; 1
none of the above
Science starts with an observation or a question
This part of the experiment serves as a basis of comparison; the one variable being tested has been taken out.
In an experiment, controlled variables (aka constants) should always be
different
the same
kind of the same
none of the above
The control group doesn't
receive experimental treatment
keep things the same
keep the experiment the same
keep procedures the same
What is an independent variable?
the variable that is deliberately changed by the scientist
the variable that is observed during the experiment.
What is a dependent variable? (Check all that apply)
The one observed during the experiment.
The data we collect during the experiment.
The data that is collected as a result of changing the independent variable.
Forming a hypothesis.
