Interior of the Earth

The thinnest layer of the Earth is the ___________.

• mantle

• crust

• core

What is the thickest layer of the Earth?

• the crust
• the mantle
• the outer core
• the inner core

What is the core made of?

• steel
• iron 
• aluminum
• iron and nickel

What is the correct order (starting from the surface) of Earth's layers?

• crust, outer core, inner core, mantle
• mantle, outer core, inner core, crust
• crust, mantle, outer core, inner core
• outer core, inner core, crust, mantle

A rock deep within the Earth experiences extreme temperature and pressure. After a long period of time it becomes which rock?

• Magma

• Igneous

• Metamorphic

• Sedimentary

What material is used to form igneous rocks?

• magma
• sand
• gravel
• fossils

what is the rock cycle.

• molten rock that is stored underground.
• rock material that forms where rocks are broken down into smaller pieces.
• a process that changes one type of rock into another type of rock.

Which rock is a metamorphic rock?

• limestone
• marble
• basalt
• granite

Limestone is Sedimentary rock.

• TRUE
• FALSE

This rock formed when bits of other rocks became pressed into a solid. What type of rock is it?

• Sedimentary Rock
• Metamorphic Rock
• Igneous Rock