Earth's Rocks and the Rock Cycle

What is the Earth's solid exterior made of?

• Water

• Rocks

• Lava

• Sand

What is the first and lightest shell of the Earth?

• Mantle

• Atmosphere

• Core

• Crust

What are the two types of crust on Earth?

• Granite crust and Basalt crust

• Continental crust and Oceanic crust

• Igneous crust and Volcanic crust

• Sedimentary crust and Metamorphic crust

What type of rock is granite?

• Sedimentary

• Metamorphic

• Igneous

• Volcanic

What type of rock is basalt?

• Sedimentary

• Metamorphic

• Igneous

• Volcanic

What process causes existing rock to change into a new rock type without melting?

• Erosion

• Metamorphism

• Volcanism

• Weathering

What type of rock is formed from the remains of organisms like shellfish and corals?

• Sandstone

• Limestone

• Gneiss

• Granite

What causes the outer layers of rock to slough off and granular disintegration?

• Weathering

• Erosion

• Pressure differences

• Temperature differences

What is the Earth's mantle rich in?

• Iron and magnesium compounds

• Iron and nickel

• Silicon and aluminum

• Silicates

What is the Earth's core made of?

• Granite

• Limestone

• Basalt

• Iron and nickel