Rocks and Layers of the Earth

How would you describe the outer-core?

• liquid nitrogen

• liquid iron and nickle

• solid iron and nickle

• neither liquid nor solid, but plastic like layer

A rock formed from fragments of other rocks is a(n)

• Metamorphic Rock

• Sedimentary Rock

• Extrusive Rock

• Igneous Rock

Each rock type can follow only one pathway of the rock cycle.

• True

• False

Tags

NGSS.MS-ESS2-1

What type of rock is made of loose particles of clay, sand, gravel, shells, plant pieces, etc.

• igneous rock

• metamorphic rock

• minerals

• sedimentary rock

What property is most helpful in identifying a rock?

• color

• mineral content

• hardness

• volume

Rocks are made of minerals, and they are formed in different ways. According to the diagram, how igneous rocks formed?

• Wastes deposited by plants and animals decompose and weather.

• Other rocks experience intense heat and pressure.

• Molten rock cools and turns solid.

• Sand and other particles are buried, compacted, and cemented together.

Tags

NGSS.MS-ESS2-1

Rocks are made up of one or more

• minerals

• gases

• energy sources

• living organisms

Tags

NGSS.MS-ESS2-1

NGSS.MS-PS1-1

Most rocks are

• mixtures of minerals.

• mixtures of cells

• compounds made of minerals

• compounds made of cells

Tags

NGSS.MS-PS1-1

The diagram shows the basic materials and processes involved in the rock cycle. Which of the following processes moves rock materials across the surface of the Earth?

• compaction

• melting

• erosion

• crystalization

Tags

NGSS.MS-ESS2-2

Which of the following statements best describes the composition of rocks?

• Rocks can only be made up of a combination of three types of mineral.

• Rocks are made up of at least three different types mineral.

• Rocks are made up of one or more types of mineral.

• Rocks always consist of a single type of mineral.