This type of rock is formed by heat and pressure.

• sedimentary

• metamorphic

• igneous

Which describes what soil is made up of?

• dead plants and animals

• broken rocks

• minerals

• all of these

It is a clear, dark night. You have a good view of the sky. You see plenty of stars, but you cannot see the moon. What could explain this?

• Light from the stars makes it hard to see the moon.

• There is a star or planet blocking the moon.

• The side of the moon that's lit up is facing away from the Earth.

• Earth is blocking the sunlight that ordinarily reaches the moon.

Tags

NGSS.MS-ESS1-1

This is a diagram of a solar eclipse. A solar eclipse happens when...

• Earth casts a shadow on the sun.

• the sun casts a shadow on Earth.

• Earth casts a shadow on the moon.

• the moon casts a shadow on Earth.

Tags

NGSS.MS-ESS1-1

Fill in the blank with true or false.

Seasons change as Earth revolves around the sun.

Tags

NGSS.MS-ESS1-1

When water mixes with rock, tiny particles of the rock dissolve in the water. The rock-and-water mixture is called a

• solvent

• dissolution

• solution

Tree roots can push through rock and break it. What are some other ways that rock wears away? Select all that apply.

• water flowing

• wind

• glaciers, ice

• people

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

Fill in the blank with igneous, metamorphic, or sedimentary.

When hot molten rock crystallizes and solidifies, it is called

Select all of the tools that could be used to test the properties of rock.

• microscope

• beaker of water

• ruler

• knife

According to Mohs Hardness Scale, is feldspar or topaz easier to scratch?