Geology Unit

Question 0

Inner core

Answer 0

Composition: Solid metal
Density: most dense
Thickness: 3rd thickest

Question 1

Atmosphere

Answer 1

Thin layer/ blanket of gas that surrounds the planet

Question 2

Outer core

Answer 2

Composition: liquid metal
Density: 2nd most dense
Thickness: 2nd thickest

Question 3

Mantle

Answer 3

Composition: molten rock
Density: 3rd dense
Thickness: most thick

Question 4

Crust

Answer 4

Composition: solid rock
Density: least dense
Thickness: least thick

Question 5

Lithosphere

Answer 5

Composition: solid rock

-location of plates in the crust and upper-most part of the mantle.

Question 6

Composition

Answer 6

What something is made of

Question 7

Density

Answer 7

• mass divided by volume
• how much matter something has
• how compact atoms are

Question 8

Plates

Answer 8

2 types: oceanic and continental

• They are always moving at a rate of a few centimeters to inches per year.
• They cover the entire planet

Question 9

Magnetic field

Answer 9

The convention currents in outer core and the earths rotation are responsible for earths magnetic field

Question 10

Convection currents

Answer 10

Cycle of currents and fluids that are caused by heat rising and falling
- in layers of earth it causes plate movement

Question 11

Seismologist

Answer 11

Person who studies earthquakes

Question 12

Plate tectonics

Answer 12

3 boundaries:
Transform
Divergent
Covergent

Question 13

Seismic waves

Answer 13

3 types:

• Primary waves (longitudinal)
• secondary waves (transverse)
• surface wave (transverse)

Question 14

Continental drift

Answer 14

• Earths continents were once together as a large mass (Pangea aka supercontinent) and slowly drifted away
• Plates are always moving a few cm to an inch per year