Structure of the Earth

The Inner core is mostly made up of

• Iron

• Copper

• Calcium

• Hydrogen

Which is the thinnest layer of Earth?

• crust

• mantle

• outer core

• inner core

Which of the following describes all water on earth?

• biosphere

• hydrosphere

• atmosphere

• lithosphere

Which layer is directly below earth's crust?

• outer core

• inner core

• mantle

The core of the earth is hotter than the surface of the sun

• true

• false

Molten rock below the earth's surface is called

• magma

• lava

• crust

The lithosphere consists of all _________ on earth

• water

• plants

• rocks

• air

Which is the correct order of earth's layers?

• crust, outer core, inner core, mantle

• crust, mantle, outer core, inner core

• crust, inner core, mantle, outer core

Scientists have used earthquakes to find out what lies inside the Earth

• true

• false

Which layer consists of liquid metal?

• crust

• mantle

• outer core

• inner core