What is the earth made of? | Exit Quiz | Oak National Academy

How many layers is the earth made up of?

• 1

• 2

• 3

• 4

Which two metals are the main components of the Earth’s inner and outer core?

• aluminium and copper

• iron and aluminium

• iron and nickel

• nickel and aluminium

What is the approximate temperature of Earth's inner core?

• 3,000°C

• 4,400°C

• 6,100°C

What is the approximate temperature of Earth's outer core?

• 3,000°C

• 4,400°C

• 6,100°C

What is the approximate temperature of Earth's mantle?

• 3,000°C

• 4,400°C

• 6,100°C

Why do volcanoes and earthquakes occur along tectonic plate lines?

• Tectonic plates crash into each other at high speeds and this leads to violent earthquakes and volcanic eruptions.

• The slow movement of the tectonic plates leads to violent earthquakes and volcanic eruptions.