Experimental Design

The variable the is changed on purpose is..

• Constant
• Control
• Independent Variable
• Dependent Variable

Tags

NGSS.3-5-ETS1-3

What is the DEPENDENT variable (effect) in 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

• what you eat for breakfast

What is the INDEPENDENT variable (cause)in this experiment?
"Which type of metal, copper or aluminum, conducts heat faster?" 

• size of metal
• types of metal
• time it takes to heat up
• shape of the metal

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

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

What is the INDEPENDENT variable (cause) in this experiment?
"Will fish school more if a predator is present?" 

• whether there is a predator or not
• number of fish school together
• type of predator
• type of fish

Tags

NGSS.3-LS2-1

Diego wants to know how drinking milk affects how tall Dora grows. Which is the independent variable?

• Drinking milk.

• Diego's growth.

• Dora's growth.

• Chocolate or plain milk.

Tags

NGSS.3-LS3-2

A scientist is testing the impact of light and dark on the moth behavior by turning a light on and off. The DEPENDENT variable is...

• amount of light

• moth behavior/their reaction

• number of moths

Tags

NGSS.MS-LS1-8

A study was done to determine to figure out if HOW LONG YOU SLEEP affects your TEST SCORE. The INDEPENDENT variable is...

• test scores

• place you sleep

• hours of sleep

How many variables should you change in an experiment?

• none
• 1
• 2 or more
• depends on the type of experiment

Tags

CCSS.HSS.IC.B.3

A factor in an experiment that stays the same.

• fair test

• controlled variable

• dependent variable

• independent variable

Tags

NGSS.3-5-ETS1-3