1-7

Question 0

The core has_____ percent of the earths mass

Answer 0

33

Question 1

What is the core mostly made of

Answer 1

Iron

Question 2

How thick is the crust

Answer 2

5-100 km thick

Question 3

The crust has ________ percent of the earths mass

Answer 3

Less than 1

Question 4

Two types of crust are_____.

Answer 4

Oceanic

Continental

Question 5

Average thickness of oceanic crust is______.

Answer 5

5-8 km

Question 6

Composition of continental crust is similar to______.

Answer 6

Granite

Question 7

Composition of oceanic crust is similar to______.

Answer 7

Basalt

Question 8

Average thickness of continental crust is____.

Answer 8

30 km

Question 9

Oceanic crust is _____ than continental crust

Answer 9

Denser

Question 10

The mantle holds_____ percent of the earths mass

Answer 10

67

Question 11

Mantle is made mostly of ___________.

Answer 11

Iron and magnesium

Question 12

The _____ is the outer most rigid layer of the earth

Answer 12

Lithosphere

Question 13

The lithosphere is made up of what two parts~

Answer 13

Crust

Rigid upper part of the mantle

Question 14

The ______ is the soft layer of the mantle in which pieces of the lithosphere move on.

Answer 14

Asthenosphere

Question 15

The _______ is the strong lower part if the mantle

Answer 15

Mesosphere

Question 16

The ______ is solid

Answer 16

Inner core

Question 17

The lithosphere is broken into______.

Answer 17

Tectonic plates

Question 18

How do plate tectonics move.?

Answer 18

Heat within the earth moves the asthenosphere which moves the tectonic plates on the surface

Question 19

Who developed the theory of continental drift

Answer 19

Alfred Wagner

Question 20

What is it called when pieces of oceanic crust move away from eachother

Answer 20

Divergent boundries

Question 21

Example of a divergent boundary is

Answer 21

Mid atlantic ridge

Question 22

When continental crust is pushed into oceanic crust it is called________.

Answer 22

Continental-oceanic collisions

Question 23

The oceanic crust is pushed underneath… This is called_______.

Answer 23

Subduction

Question 24

Example of a subduction zone

Answer 24

Mariana’s trench

Question 25

Causes mountains

Answer 25

Continental continental collisions

Question 26

Example of continental continental cossisioms

Answer 26

Mount everest

Question 27

When two different tectonic plates slide against one anothere

Answer 27

Transform boundaries

Question 28

Example of a transform boundary

Answer 28

San Andreas fault in California