Inside Our Earth

How are the materials of the Earths core different from those of the crust (in general)?

• They are harder

• They are more dense

• They are older

• They are darker in color

Which area of the Earth is least dense ?

• Outer core

• inner core

• mantle

• crust

This rock was another type of rock that was heated and compressed over time. What type of rock is this?

• Sedimentary

• Igneous

• Metamorphic

This rock started as molten magma. What type of rock is this?

• Sedimentary

• Igneous

• Metamorphic

This rock was formed by smaller pieces of rock that settled at the bottom of a lake millions of years ago. What type of rock is this?

• Sedimentary

• Igneous

• Metamorphic

Which of the following describes rocks formed when sediments are buried, compacted, and cemented together?

• Clastic

• Organic

• Foliated

• Nonfoliated

• The answer rhymes with spastic

According to the diagram, what process is shown by letter A?

• extrusion

• erosion

• crystallization

• intrusion

Tags

NGSS.MS-ESS2-1

Which correctly identifies how the rock cycle begins and ends in the diagram?

• magma, igneous rock, sediment, sedimentary rock, and metamorphic rock

• sediment, sedimentary rock, metamorphic rock, magma, igneous rock

• sedimentary rock, metamorphic rock, magma, igneous rock, and sediment

• metamorphic rock, magma, igneous rock, sediment, and sedimentary rock

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.

The crust is made of two types of rock, _____ and _____.

• Nickel & Iron

• Basalt & Granite

• Continental & Oceanic

• Talc & Minerals