Physical Science Review

The following illustration shows a tool that is used to separate certain mixtures.

This type of tool can be used to best separate what type of mixture?

• a mixture of sand and salt

• a mixture of particles of the same size

• a mixture of particles of different sizes, such as seashells and sand

• a mixture of steel, which is magnetic, and aluminum, which is not magnetic

Four students put 30 g of salt in a 100 mL solution of water. Each student heated his or her water solution to a different temperature.

Which student most likely had the solution with the fastest dissolving rate?

• Marcus

• Luis

• Tyra

• Andrew

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is an example of evaporation?

• When water changes to ice.

• When water forms on the outside of a glass.

• When ice changes into water.

• When water changes into water vapor.

Tags

NGSS.MS-PS1-4

What is matter?

• Anything that is small and has weight.

• Anything that is small and takes up space.

• Anything that takes up space and has weight.

• Anything that is large and has weight.

What caused the mini lake weight to drop?

• The water disappeared into the sand.

• The lid had condensation on it and that made it lighter.

• The mini lake didn't change weight.

• The lid was removed allowing evaporation of the water into the air.

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What happened to the salt that we added to the one mini lake as the water turned into water vapor?

• It disappeared.

• It was left on the rocks and the side of the container.

• It evaporated into the air with the water.

• It was clumped up into a pile in the middle of the lake.

Condensation is the opposite of evaporation.

• True

• False

Tags

NGSS.MS-ESS2-4

When gas/vapor turns into a liquid or solid, it is called _______;

• evaporation

• the water cycle

• dissolving

• condensation

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

When ice melts, its volume __________.

• increases

• decreases

• stays the same

• water/ice doesn't have volume

Tags

NGSS.MS-PS1-4

What is compression?

• When something gets shorter.

• When something gets taller.

• When something gets pressed together.

• When something gets expanded.