Experimental Design Review

In an experiment, constants should always be

• different

• the same

• kind of the same

• none of the above

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

This part in an experiment is the one being changed or manipulated by the scientist.

• dependent variable

• independent variable

• constants

• control

Tags

NGSS.MS-PS2-2

Mr. Sweeney wanted to see how different types of music affected students' heart rates. He played different types of music: heavy metal, rap, R&B, alternative, pop, country, and classical music. Identify the independent variable.

• classical music resulted in the highest pulse rate

• types of music

• students' heart rate

• Mr. Fitch

Justin usually blows his nose using Kleenex tissues. His snot keeps leaking through the tissue. He decided he is going to create an experiment to find the best tissue brand. What would be 1 constant?

• amount of tissue

• type of tissue

• kleenex

• which one works better

Bryanna was investing how fast it took Julian to react to different sounds. Identify the dependent variable.

• different sounds

• how much time it took Julian to react

• playing the trumpet over and over

• Julian

George wanted to see how high an ice cube would float in different temperatures of water. Identify the independent variable.

• temperature of the water

• size of ice cube

• how high the ice cube floated

• amount of water

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

How many variables do we want to be testing at one time?

• 1
• 2
• 3
• 4

Constants should be...

• different

• same

• kind of the same

• none of the above

In this graph, what is the dependent variable? 

• Walla Walla Island
• Time
• Number of Deer

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Based on the data table, number of days is the __.

• dependent variable

• independent variable

• constant

• none of the above