Earth Science

What percent of Earth's surface is water?

• 29%

• 53%

• 71%

• 92%

Earth is the only planet we know that can support _________.

• an atmosphere

• life

• rocks

• none of the above

What surrounds the Earth and contains gases that are essential for life?

• an atmosphere

• the Sun

• ocean

• lithosphere

The first layer of the Earth is _________.

• crust

• mantle

• outer layer

• inner layer

Animals and plants live in the mantle.

• True

• False

The inner core is made of solid nickel and iron.

• True

• False

Which one of these answers would you NOT find on Earth's crust?

• oceanic crust

• soil and rock

• continental crust

• clouds

Both the inner core and the outer core are made up of primarily which two elements?

• oxygen and carbon dioxide

• silver and gold

• nickel and iron

• water

Identify to which sphere the picture you see belongs.

• hydrosphere

• lithosphere

• atmosphere

• none of the above

Identify to which sphere the picture you see belongs.

• atmosphere

• lithosphere

• hydrosphere

• none of the above