WorksheetsScientific Method Review
Total questions: 10
Worksheet time: 5mins
Which of the following questions could be answered scientifically with an experiment?
Which flowers are prettier, daisies or roses?
Can you get warts from handling toads?
Do cats make better pets than dogs?
The name for an educated guess in science in known as...?
A conclusion
An observation
A hypothesis
A variable
Suppose you and your neighbor are growing tomatoes. One day you notice that your neighbor's plants are much bigger than yours. What's causing the difference? Which of the following is an example of a "good" hypothesis that could be tested out with an experiment?
If I give my plants fertilizer, then they will grow as big as my neighbor's plants.
If I get lucky, then my plants will grow bigger.
My plants aren't growing bigger because I don't water them enough.
What is an independent variable?
The factor/thing that you measure in an experiment.
The one factor/thing you change in an experiment.
The factors/things that you keep the same in an experiment.
What is a dependent variable?
The factor/thing that you measure in an experiment?
The one factor/ thing you change in an experiment.
The factors/things that you keep the same in an experiment.
What is the independent variable for the following scientific question?
Does the shape of the container affect the rate at which water freezes?
the same amount of time in the freezer
the rate at which water freezes
the same amount of water
the shape of the container
Identify the dependent variable from the following scientific question.
Do trucks use more fuel than cars?
the type of vehicle (truck vs. car)
the amount of fuel
the type of gasoline
the distance the vehicle travels
In the following experiment, what is one constant that would make this a controlled and therefore valid experiment?
Does the size of a toy car's wheels affect the speed at which it rolls?
the speed the car rolls
the size of the wheels
the surface the cars roll over
How many times should an experiment be repeated to make the results valid?
Once- I ain't got no time for more than that!
Two times- two is always better than one!
At least three times- you know what they say, "third times a charm!"
3+, the more the merrier!
What is an experimental group?
The group whose conditions are being changed.
The group whose conditions are not be changed.
The group you want to test in your next experiment.
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