Variables

You are testing how the amount you water a plant affects its growth. What would be the INDEPENDENT VARIABLE in this experiment.

• They type of pot you put the plants in.

• The amount you water each plant.

• The amount of sunlight the plants get.

• The amount the plant grows.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

This variable is the one thing that changed on purpose...

• Dependent Variable

• Control

• Independent Variable

Tags

NGSS.MS-PS2-2

What is the DEPENDENT variable (effect) in this experiment?"Does eating breakfast improve test scores?"

• eating breakfast or not

• the grade you got on the test

• what time you get up in the morning

• how tasty the breakfast is

Mr. Pransky wants to see how different surfaces affect how high a tennis ball can bounce. What is the independent variable?

• the different surfaces

• using the same ball

• how high they bounce

Variable that responds or is measured; it depends on the independent variable.

• Control Variable

• Variable

• Dependent Variable

• Independent Variable

Tags

NGSS.MS-PS2-2

What is being kept constant?

• ramp height

• speed of the ball rolling

• type of ball

Tags

NGSS.MS-PS2-2

Ruthie has a pet goldfish. After several months the goldfish quits growing. Ruthie’s Mom told her the goldfish might have stopped growing because the tank is too small. Ruthie measures the size of her goldfish in its current tank, and then puts the goldfish in a larger tank. After 2 months the goldfish is now 1cm longer. What is the Independent Variable?

• Length of the Goldfish

• Color of the Goldfish

• Size of the fish tank

• 2 months

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is the independent variable?

• Things you keep the same- they do not change

• What you observe or measure

• What you decide to change in an experiment

Tags

NGSS.MS-PS2-2

Heidi is a chocolate lover and eats chocolate daily. She has a bad break-out and her friend told her eating chocolate causes pimples. Heidi continues to eat chocolate every day for 2 weeks and counts the number of pimples she has on her face. The following 2 weeks she doesn’t eat any chocolate and counts the number of pimples on her face. What is the Independent Variable?

• 2 weeks NOT eating chocolate

• 2 weeks eating chocolate

• Number of pimples

• How much sleep Heidi gets.

Tags

NGSS.MS-LS1-5

What is a controlled variable?

• A variable being tested in an experiment.

• A variable that changes depending on another variable.

• A variable that is kept the same in an experiment.