Variables in Science

The variable that is measured in an experiment is called the _____________________________.

• independent variable

• dependent variable

• control variable

The variables that are kept the same in an experiment are called __________________________.

• Control variables

• Hypothesis variables

• Independent Variable

• Dependent Variable

The variable that you change in an experiment is called the ___________________________________

• Hypothesis Variable

• Control Variable

• Independent Variable

• Dependent Variable

Plants grow best in colored light. What is the independent variable of this statement?

• Plant Growth

• Colored Light

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

• Brand of paper towel

• Amount of water absorbed

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

• brand of paper towel

• amount of water absorbed

Mr S. 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

Mr. S 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

Mr. S wants to determine if salt in the water has an effect on his goldfish. What is the independent variable?

• how much salt is in the water

• temperature

• health of his goldfish

• amount of algae in the tank

Mr. S wants to determine if salt in the water has an effect on his goldfish. What is the dependent variable?

• how much salt is in the water

• temperature

• health of his goldfish

• amount of algae in the tank