Chemistery 2

Question 1

How old is the earth

Answer 1

4.5 billion

Question 2

What is crust made out of?

Answer 2

solid rock

Question 3

What is the mantle made out of?

Answer 3

semi-solid super hot rock

Question 4

What is outer core made out of?

Answer 4

liquid metal

Question 5

What is inner core made out of?

Answer 5

solid metal

Question 6

Which layer of the Earth is radioactive?

Answer 6

Inner core

Question 7

Which layer of the Earth is the hottest?

Answer 7

Inner core

Question 8

How hot is the inner core( degrees Celsius) ?

Answer 8

5000-7000 degrees Celsius

Question 9

What is the outer core mostly made out of?

Answer 9

Iron and nickel

Question 10

How thick is the crust?

Answer 10

8 km- 40 km

Question 11

Why is the inner core solid?

Answer 11

Because it experiences so much pressure

Question 12

Does the inner core or mantle move in currents.

Answer 12

mantle

Question 13

What are three names of boundaries that cause a earthquake?

Answer 13

Divergent
Convergent
Transform

Question 14

What is Divergent boundaries?

Answer 14

Divergent plates move apart and this allows the magma to get out.

Question 15

What does convergent mean ?

Answer 15

plates meeting each other. One of them will get underneath the other and if they don’t they will form a mountain.

Question 16

What does transform mean ?

Answer 16

plates slide against each other in the opposite direction.

Question 17

Why is their a high amount of of oxygen in the crust?

Answer 17

There is a high amount of oxygen in the crust because there are lots of metals in the crust and oxygen is a group 6 element so it bonds with the metals to become a noble gas.