More cards in this set

Card 16

Front

What does the outer core do?

Back

Preview of the front of card 16

Card 17

Front

What is the outer core?

Back

Preview of the front of card 17

Card 18

Front

How hot is the outer core?

Back

Preview of the front of card 18

Card 19

Front

What is the inner core?

Back

Preview of the front of card 19

Card 20

Front

How hot is the inner core?

Back

Preview of the front of card 20

Card 21

Front

By how much does the inner core grow every year?

Back

Preview of the front of card 21