earth

Question 1

What is the crust?

Answer 1

Made of purely solid rock, some is oceanic, averages 5km thick and some is continental, averaging around 35km thick

Question 2

What is the mantle?

Answer 2

Made of liquid solid rock (magma), temperatures reach up to 4000 degrees, extends roughly 2900km into the planet

Question 3

What is the outer core?

Answer 3

Made of liquid metal (iron/nickel), temperature reaches up to 6000 degrees on average, maximum depth is 5200km

Question 4

What is the process of convection?

Answer 4

Less dense heat rises from the mantle, cools down and falls to be reheated

Question 5

What is global atmospheric circulation?

Answer 5

The worldwide system of winds that travel from the equator to the poles

Question 6

How does the air in the atmosphere move?

Answer 6

Differences in temperature at the equator (warmest) and the poles (coldest), due to convection overall

Question 7

What is convection?

Answer 7

Air moving from an area of high concentration to an area of low concentration