Geology

Which layer of the Earth is the only liquid layer?

• Outer Core
• Inner Core
• Mantle
• Lithosphere

Which type of rock results from melting and cooling of magma?

• Igneous
• Metamorphic
• Sedimentary
• Extrusive

Which type of rock forms from extreme heat and pressure?

• Igneous
• Sedimentary
• Organic
• Metamorphic

Wind, water, and ice breaking down rock is called

• Erosion
• Deposition
• Compaction
• Weathering

True/False: Igneous rocks can only turn into metamorphic rocks.

• True
• False

This rock started as lava that cooled and then was heated and put under pressure over time. What type of rock is this?

• Sedimentar
• Igneous
• Metamorphic

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

• Sedimentary

• Igneous

• Metamorphic

This rock is made from tiny pieces of other rocks that settled to the bottom of a valley millions of years ago. What type of rock is this?

• Sedimentary
• Igneous
• Metamorphic

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

• True
• False

Fossils are usually found in ____________ because it is formed from the remains of once living things.

• metamorphic

• magma

• igneous

• sedimentary