Scientific Investigation and Variables

The independent variable is the ONE thing you _____.

• change
• keep the same
• experiment with
• investigate

The variable that you measure is the -

• Independent Variable

• Dependent Variable

• Controlled Variable

• Repeated Trial

The variables in an experiment that stay the same are the -

• Independent Variable

• Dependent Variable

• Controlled Variable

How many variables can be tested in a controlled experiment?

• one
• two
• three
• as many as possible

Tags

NGSS.MS-PS2-2

What is a hypothesis?

• A hypothesis is the right answer to an experiment.
• A hypothesis is the wrong answer to an experiment.
• A hypothesis is an educated guess.

Tags

NGSS.MS-LS1-5

What step does every scientific experiment begin with?

• hypothesis
• question/problem
• procedures
• conclusion

Why do we want to test one variable at a time?

• Because it is hard to setup a data table with more
• To know what is causing the changes
• It is what has always been done
• No one really knows

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

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Mr. S 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

Tags

NGSS.MS-PS2-2

Mr. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.

• Distance traveled by the ball
• Height of the ramp
• Mass of the ball

Tags

NGSS.MS-PS2-2