Rocks

What are the three main layers of the Earth?

• Core, lithosphere, crust
• Core, mantle, crust
• Asthenosphere, lithosphere, crust

What is the outer most layer on Earth?

• Core
• Mantle
• Crust

What is the most common type of material on Earth?

• Rocks
• Trees
• Ice

What are the three main types/classifications of rocks?

• Metamorphic, igneous, sedimentary
• Coal, basalt, gneiss
• Metamagic, marble, limestone

What is the name for the process of recycling materials that make up the Earth's crust and mantle? 

• the nitrogen cycle
• the rock cycle
• the water cycle

How are sedimentary rocks formed?

• Heat and pressure causes the rock to change
• Layers of sediment over time compact
• Melting magma escapes a volcano

Which type of rock makes up 75% of Earth’s surface?

• Igneous
• Metamorphic
• Sedimentary

What is the process where rock is dissolved, worn away, or broken down into smaller pieces?

• Erosion 
• Weathering
• Rock cycle

We talked about several types of erosion. What are they?

• Chemical, mechanical, water, and gravity
• Mechanical, gravity, wind, and ice
• Wind, water, ice, and gravity

Weathering and erosion work together during the rock cycle.

• True
• False