1A-C3 Test- Mercury, Venus and Earth

Front

What is the thinnest layer of the Earth?

Back

Crust

Front

What is the Earth's mantle made of?

Back

Rock and magma

Front

Which planet's atmosphere has 21% oxygen?

Back

Earth

Front

What is a plate tectonic?

Back

A slab of rock

Front

What are Venus's clouds primarily made of?

Back

Sulfuric acid

Front

What is the primary component of the Earth's crust?

Back

Silicate minerals

Front

What is the main gas in Venus's atmosphere?

Back

Carbon dioxide

Front

What layer of the Earth is liquid?

Back

Outer core

Front

What is the process called when tectonic plates move?

Back

Plate tectonics

Front

Which planet is known as the 'Red Planet'?

Back

Mars