Layers of the Earth

Which layer contains the gases we breathe?

• atmosphere

• lithosphere

• hydrosphere

• mesosphere

Which layer contains the Earth's surface water such as oceans, lakes, streams, and rivers?

• atmosphere

• lithosphere

• mesosphere

• hydrosphere

Which layer is shown in red?

• crust

• mantle

• outer core

• inner core

Which layer is shown in brown?

• crust

• mantle

• outer core

• inner core

Which layer is made of "flowing" solid rock (think clay or pudding)?

• crust

• mantle

• outer core

• inner core

Which layer is made (mostly) of SOLID iron and nickel?

• crust

• mantle

• outer core

• inner core

Which layer of the Earth is the THINNEST?

• crust

• mantle

• outer core

• inner core

Which layer of the Earth is the THICKEST?

• crust

• mantle

• outer core

• inner core

A break in Earth's crust along which rocks move is called a ________.

• plate
• rift
• fault
• breach

What is the name of the single landmass that began to break apart 200 million years ago?

• Panthalassa
• Laurasia
• Gondwanna
• Pangaea