Scientific Variables

In your experiment, the thing you measure is called the...

• independent

• dependent

• control/constant

• ruler

In an experiment, the variable you change is called the...

• independent

• dependent

• control/constant

• spam

These variables keep the experiment fair by keeping things the same...

• independent

• dependent

• control/constant

• the law

Does the distance Manny kicks the soccer ball affect how well he tests in math? What is the dependent variable?

• How far he kicks the soccer ball.

• The type of soccer ball.

• How well Manny does on his math test.

• How tall Manny is.

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid. Each plant has the same amount of sunlight, soil and listens to the same music. What is the independent variable?

• the type of plant

• the type of liquid

• the type of music

• the amount of liquid

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid. Each plant has the same amount of sunlight, soil and listens to the same music. What is the dependent variable?

• the amount of liquid

• the amount of sunlight

• the growth of the plant

• the volume of the music

Ben makes five paper helicopters with different wing lengths. He drops them the same way from a height of two meters for five trials each. He records the amount of time it takes for each helicopter to fall to the ground.

What is the independent variable?

• Dropping the same way

• Wing Length

• Amount of time it takes the helicopter to hit the floor

• Dropping from the same height

Ben makes five paper helicopters with different wing lengths. He drops them the same way from a height of two meters for five trials each. He records the amount of time it takes for each helicopter to fall to the ground.

What is the dependent variable?

• Dropping the same way

• Wing Length

• Amount of time it takes the helicopter to hit the floor

• Dropping from the same height