Section 1

Question 0

Pressure

Answer 0

The force exerted on a surface divided by the area over which the force is exerted

Question 1

Seismic waves

Answer 1

Vibrations that travel through Earth carrying the energy released during an earthquake

Question 2

Crust

Answer 2

The layer of rock that forms Earths outer surface

Question 3

Basalt

Answer 3

A dark, dense, igneous rock with a fine texture, found in oceanic crust

Question 4

Granite

Answer 4

A usually light colored igneous rock that is found in continental crust

Question 5

Mantle

Answer 5

The layer of hot, solid material between Earths crust and core

Question 6

Lithosphere

Answer 6

A rigid layer made up of the uppermost part of the mantle and the crust

Question 7

Asthenosphere

Answer 7

The soft layer of the mantle on which the Lithosphere floats

Question 8

Outer core

Answer 8

A layer of molten iron and nickel that surrounds the inner core of Earth

Question 9

Inner core

Answer 9

A dense sphere of solid iron and nickel at the center of Earth