Variables in Science

The variable that is changed on purpose is the ...

• Constant
• Control
• Independent Variable
• Dependent Variable

The variable that is being tested, counted, or measured and is responding to the independent variable is known as 

• Control
• Constant
• Independent Variable
• Dependent Variable

Which brand of paper towel will absorb the most liquid? What is the independent variable?

• Brand of paper towel
• Amount of water absorbed

What you measure or observe in an experiment.

• constant variable

• controlled variable

• dependent variable

• independent variable

The ONE thing you change in an experiment.

• constant variable

• controlled variable

• dependent variable

• independent variable

Find the Independent Variable: You experiment to see if a bouncy ball or a tennis ball bounces higher.

• Type of ball

• Same drop height

• Height of bounce

• Same surface

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

What is the independent variable in this experiment: Will an egg float higher in water with more salt?​

• type of egg

• amount of salt in the water

• how high the egg floats

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 independent variable?

• Study Time

• Test Score

• Same Assignment

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 dependent variable?

• Study Time

• Test Score

• Same Assignment