Independent Variable
Dependent Variable
100

The time it takes to run a mile, depends on the time of day it is run.  What is the independent variable in this experiment?

Time of Day

100

Does the height you drop a ball from affect the height it will bounce?  What is the dependent variable in this experiment?

The height the ball bounces after being dropped

200

The higher the temperature of water, the faster an egg will cook.  What is the independent variable in this experiment?

The temperature of water

200

Can a person run faster in tennis shoes or sandals? What is the dependent variable in this experiment?

The dependent variable is the time it takes the person to run a certain distance.

300

Grass will grow faster if it is fertilized.  What would the independent variable in this experiment be?

The independent variable is the use of fertilizer.  

300

Does wearing a dark color shirt increase your body temperature more than wearing a light color shirt?  What is the dependent variable in this experiment?

The dependent variable in this experiment is the body temperature of the person wearing the shirts.

400

Citrus plants that receive more water will have more juice in the fruit.  

The independent variable is the amount of water given to the plants.  

400

Does a skateboard travel further on grass, the sidewalk, or on the paved road?

The distance the skateboard travels on each surface is the dependent variable.

500

A student wanted to see if their score on spelling tests would improve if they spent more minutes studying the spelling words.  What would the independent variable in this experiment be?

The independent variable is the amount of time spent on studying for spelling.

500

Do all clear liquids freeze at the same temperature? What is the dependent variable in this experiment?

The temperature the liquids freeze is the dependent variable.  

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