Convection Currents

Question 1

Convection Currents

Answer 1

Magma near the outer core is heated. This causes it to expand, become less dense and rise towards the crust. As it rises, it slowly begins to cool. Once the magma reaches the crust, it spreads out and moves ten tectonic plates with it. The cooling magma becomes less dense and begins to sink towards the outer core where it is reheated again, triggering the same cycle. The rising and falling motion of the magma creates circular currents also known as convection currents

Question 2

Tectonic Plate

Answer 2

A large piece of Earth’s crust floating on the mantle

Question 3

Plate Boundary

Answer 3

Where 2 or more tectonic plates meet

Question 4

Oceanic Plate

Answer 4

Tectonic plate with water on top of it. These are normally heavier/more dense

Question 5

Continental Plate

Answer 5

Tectonic plate with land on top of it. These are normally lighter/less dense.