Controls and variables

When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?

• Dependent
• Independent
• Control

Tags

NGSS.MS-ETS1-1

A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____.

• Diameter of the ball
• Force acting on the ball
• Height that the ball bounces
• Height from which the ball is dropped

This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted. 

• experimental group
• control group
• data
• variables

This variable in an experiment is the one being deliberately changed by the scientist. 

• dependent variable
• independent variable
• data
• control group

Tags

NGSS.MS-PS2-2

Everything starts with an observation or a question

• True
• False

Tags

NGSS.HS-LS3-1

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

• 1
• 2
• 3
• 4

The variable that you measure is the -

• IV
• DV
• Constant
• Repeated Trial

The independent variable is the ONE thing you _____.

• change
• keep the same
• experiment with
• investigate

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

The measurable factor in an experiment is known as the: 

• Control
• Independent Variable
• Constant
• Dependent Variable

 In a controlled experiment, the variable that is changed to test the hypothesis is called the –

• Controlled Variable
• Responsive Variable
• Dependent Variable
• Independent Variable