Chap 1- Identifying variables

What is the INDEPENDENT variable is this experiment?

"Which type of medium is best for plant growth?"

• height of plant (cm)

• type of medium (soil vs. sand)

• amount of medium

• types of plant

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

What is the DEPENDENT variable 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-PS3-5

What is the INDEPENDENT variable 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-PS1-2

NGSS.MS-PS3-3

Bonnie wants to test whether adding Bio-fertilizer 'x' will help plant grow. What is the "controlled group" in this experiment?

• plant sprayed with Bio-fertilizer 'x'
• plant without the Bio-fertilizer 'x'

Tags

NGSS.MS-LS1-5

Which variable is NOT a constant in this experiment?
"Is Bounty paper towel more absorbent than sparkle paper towel?

• the size of paper towel
• the amount of water for the paper towel to absorb
• amount of water the paper towel absorbed
• the shape of paper towel

Tags

NGSS.MS-ETS1-3

What is the INDEPENDENT variable 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.MS-LS2-4

Which variable is NOT a constant in this experiment?
"What type of medium do earthworms prefer?"

• type of medium
• amount of medium
• direction of the earthworm
• types of earthworm

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

A test company wants to see whether having a special study program such as SAT prep will help increase test score. What is the "experimental group" in this experiment?

• the usual study program
• special study program

Janet wants to see whether drinking coffee will improve productivity. What is the INDEPENDENT variable in this experiment?

• increase productivity

• Having coffee or not

• the brand of coffee

• the time drinking the coffee

The independent variable is the ONE thing you _____.

• change
• keep the same
• experiment with
• investigate

Tags

CCSS.6.EE.C.9