Identifying Independent/Dependent Variables

The ____ variable is what is observed during the experiment.

• Independent

• Dependent

• Controlled

Tags

NGSS.MS-PS1-2

A study was done to find if different tire treads affect the braking of a car. What is the independent variable?

• Car

• Brakes

• Tire treads

• Seat belts

Tags

NGSS.MS-PS2-2

Lemon trees receiving the most water produced the most lemons. What is the dependent variable?

• Amount of water

• Growth of the lemon tree

• How many lemons were produced

• Amount of sunlight

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

The height of bean plants depend on the amount of water they received. What is the independent variable?

• Amount of water

• Height of the plants

• How many beans were produced

• Temperature the plants were in

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

The temperature of water was measured at different depths in a pond. The temperature of water is the dependent variable.

• True

• False

What is the dependent variable (effect) is this experiment? "Does eating breakfast improve test score?"

• eating breakfast or not

• the grade you got on the test

• what time you get up in the morning

• how tasty the breakfast is

What is the independent variable (cause) is this experiment? "Which type of medium (soil or sand) is best for plant growth?"

• height of plant (cm)

• type of medium (soil or sand)

• amount of medium (soil or sand)

• types of plant

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

What is the dependent variable (effect) in this experiment?"Do tall people jump further than short people?"

• height of the person

• weight of the person

• how fast the person runs

• how far the person jumps

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

The independent variable is the ONE thing you _____

• change

• keep the same

• experiment with

• investigate

Tags

NGSS.MS-PS2-2

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what is the independent variable?

• Type of plant

• Water, apple juice, milk

• Plant growth