Scientific Method Review

Should experiments be repeated over and over to see if the results are the same each time?

• yes
• no

A student wants to test the effects of type of exercise on heart rate.  What is the independent variable?

• type of exercise
• heart rate
• amount of time exercise occurs
• gender of person that exercises

How many variables can be tested in a controlled experiment?

• one
• two
• three
• as many as possible

True or False: A hypothesis must be stated in a way that is testable.

• True
• False

Tags

NGSS.MS-PS2-2

This variable in an experiment is the one being deliberately changed by the scientist. 

• dependent variable
• independent variable
• data
• control group

What step does every scientific experiment begin with?

• hypothesis
• question/problem
• procedures
• conclusion

This variable in an experiment is the one being changed by the scientist. 

• dependent variable
• independent variable
• data
• control group

If I ride my bike to school instead of walking, then I will get to school faster. What is the dependent variable?

• True
• How fast you get to school
• Riding a bike or walking
• False

Tags

NGSS.MS-PS3-1

Will a construction paper air plane fly faster than an airplane made from notebook paper? Choose the best hypothesis.

• If I make a paper airplane from notebook paper, then it will fly faster than construction paper.

• I believe a notebook paper plane will fly faster than a construction paper plane

• The planes will fly the same

• I think the construction paper air plane will fly faster.

During this step of the scientific method, a scientist would gather background information. 

• Hypothesis
• Research
• Observation
• Experiment