Variables in an Experiment

The one variable in an experiment that is purposely changed by the scientist is the________________. (What is being tested?)

• dependent variable

• independent variable

• data

• control group

What is a Constant Variable?

• The DATA or results of an experiment

• A trial used to COMPARE results to

• The ONE thing I Change

• Everything that stays the SAME

What the scientist is measuring in the experiment is the...

• Dependent Variable

• Conclusion

• Independent Variable

• Constant Variables

Research Question: Does the type of gasoline put in a car affect how fast the car can drive.

What is the independent variable?

• Type of gasoline

• which car the gas is put into

• how fast the car can drive

• how much gas is put into the car

Tags

NGSS.4-PS3-1

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

• heart rate
• type of exercise
• amount of exercise
• time of day exercise occurs

Tags

NGSS.3-5-ETS1-3

Mrs. Goodwyn wants to see if studying time affects test scores...She gives all 6 classes the same assignment but assigns different study times. What is the constant?

• Study  Times
• Test Scores
• Same Assignment

Tags

NGSS.3-5-ETS1-3

A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____.

• Diameter of the ball
• Force acting on the ball
• Height that the ball bounces
• Height from which the ball is dropped

Tags

NGSS.3-5-ETS1-3

How many variables do we want to be testing at one time?

• 1
• 2
• 3
• 4

Tags

NGSS.3-5-ETS1-3

Justin wants to determine the effect of fertilizer on the growth of grass. What is the independent variable?

• amount of fertilizer

• height of grass

• type of plant

• time

Tags

NGSS.3-5-ETS1-3

Justin wants to determine the effect of fertilizer on the growth of grass. What is the dependent variable?

• amount of fertilizer

• height of grass

• type of plant

• time

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1