Experimental Design

The type of variable that you change or manipulate in an experiment.  It is what you are testing.

• Independent
• Dependent
• Control

Tags

NGSS.MS-PS2-2

The type of variable that responds to the experiment and is what you measure to determine if your hypothesis is true.

• Independent
• Dependent
• Control

Tags

NGSS.MS-PS1-2

The parts of the experiment that must be kept the same.

• Constants
• independent
• Dependent

How many variables should you change in an experiment?

• none
• only 1

• 2 or more
• depends on the type of experiment

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

Dory set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. What is the dependent variable?

• distance traveled by the ball
• height of the ramp
• mass of the ball
• ball type

Tags

NGSS.MS-PS2-2

Dory set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. What is the independent variable?

• distance traveled by the ball
• height of the ramp
• mass of the ball
• ball type

Tags

NGSS.MS-PS2-2

Dory set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. What is the independent variable?

• distance traveled by the ball
• height of the ramp
• mass of the ball
• ball type

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
• Compound

Tags

NGSS.MS-ETS1-1

NGSS.MS-LS1-5

What are the number of times each level of the independent variable is tested?

• constants

• control

• trials

• dependent variable

The vertical axis of a line graph is called the __________.

• slope

• line of best fit

• x-axis

• y-axis