Science Investigations

What is the variable that is changed?

• dependent

• independent

• control

• none of these

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

What is the variable that is kept the same?

• independent

• dependent

• control

• reliable

Why do repeat readings in an experiment?

• to reduce random errors

• to be able to calculate a mean

• to check the resolution

• more than one of these

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-PS3-5

Florence and Max are planning an experiment for their physics class to find out how the height from which Max drops a basketball affects how high the basketball bounces back. What is the control variable in their experiment?

• The basketball used by Max

• The height the basketball bounces back

• Height from which Max drops the basketball

Tags

NGSS.MS-ETS1-1

Hypothesis: If we increase the length of string on a pendulum, then it will a take longer time period to make one complete cycle back and forth.

What is the independent variable in this investigation?

• Time period

• Number of cycles

• Length of string

• Amount of mass on end of string

What is the dependent variable?

• Height (cm)

• Location of Plant

• Day(s)

• Type of Plant

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

What is the independent variable?

• Height (cm)

• Location of Plant

• Day(s)

• Type of Plant

Tags

NGSS.MS-LS1-5

Identify the apparatus used to measure the volume of a liquid

• Beaker
• Measuring cylinder
• Measuring jug
• Test-tube

Identify the apparatus used to measure the volume of a gas

• Beaker
• Boiling  tube
• Measuring jug
• Gas syringe