Scientific Variables 6th grade

What is the definition of independent variable?

• The things that stay the same in the experiment

• The 1 thing I change in the experiment

• The results that are measured in the experiment

3 groups of the same plant were given different amounts of water. The scientist measured how tall the plants grew.

They were kept in the same room and the same temperature.

Which is the Independent Variable?

• The amount of water

• The type of plant

• How tall the plants grew

Tags

NGSS.MS-LS2-1

What is the definition of dependent variable?

• The things that stay the same in the experiment

• The 1 thing I change in the experiment

• The results that are measured in the experiment

Tags

NGSS.MS-PS2-2

A scientist tested whether using aluminum or wooden bats made the baseball go farther. Which is the dependent variable?

• What the bat is made of

• How far the baseball went

• The type of field

What is the definition of controlled variable?

• The things that stay the same in the experiment

• The 1 thing I change in the experiment

• The results that are measured in the experiment

A student wanted to see if different brands of batteries worked better in a flashlight. He tried 3 different brands of batteries in the same flashlight. Each time he watched to see how long the light would stay shining. What is the independent variable?

• The type of flashlight

• The brand of flashlight

• The brand of batteries

A student wanted to see if different brands of batteries worked better in a flashlight. He tried 3 different brands of batteries in the same flashlight. Each time he watched to see how long the light would stay shining. What is the DEPENDENT variable?

• Length of time light stays on

• The amount of batteries used

• The person using the flashlight

A scientist wants to test which color of apple students like to eat the most. She sits out red, green and yellow apples . She counts how many of each apple is taken. What is the Independent variable?

• The number of apples

• Where the apple is boughten

• The color of the apple

The class wanted to test if the amount of salt put into the water caused a ball to sink or float? The Independent variable is the amount of salt, the dependent variable is whether it sank or floated. What is something the class had to keep the same for each time they did the experiment?

• The amount of salt

• The amount of water

• How long the ball floated

Tags

NGSS.MS-PS2-2

A teacher built a maze in the playground she wanted to see which student was able to get out of the maze in 2 minutes. She had a different student try each time and as they exited the maze she wrote down how long it took them. What would be the dependent variable - what was she measuring?

• The time it took to get out of the maze

• The type of maze that was set up

• The different students