Vocab

Question 0

Mantle

Answer 0

Made up of magma and convection currents asthenosphere is made up of ductile rock semi magma

Question 1

Core

Answer 1

The core is 3000 km below earth’s surface dense and largely made up if nickel and iron the inner core is solid and the outer core is liquid

Question 2

Lithosphere

Answer 2

Brittle outermost layer of planet

Question 3

Core

Answer 3

Outermost layer of lithosphere

Question 4

How did the earth form?

Answer 4

The earth form from cosmic dust from solar formation

Question 5

What is the layers composition of each earths layers?

Answer 5

The core is made of nickel, the mantle is made of magma, the asthenosphere is made of semi magma and ductile rock, the lithosphere is brittle, the crust is made of igneous rock

Question 6

Theory of plate tectonics

Answer 6

Earth’s lithosphere is made up of plates that move

Question 7

Tectonic cycle

Answer 7

The build up and break down of earths lithosphere

Question 8

Continental plates

Answer 8

Made up of silicon dioxide and is lighter and less dense and rise above oceanic plates

Question 9

Oceanic plates

Answer 9

Dense and rich with iron sink below continental plates

Question 10

What drives the movement of oceanic and continental plates?

Answer 10

The movement of convection cells in earths mantle. As the plates move the continents slowly drift

Question 11

What causes sea floor spreading?

Answer 11

The separating of oceanic plates as magma rises and causes new oceanic plates. Oceanic plates are pulled downward beneath the lithosphere and the heavier oceanic plates slide under lighter plates

Question 12

How is earths history measured

Answer 12

Geologic time scale

Question 13

What happened when the earths continents drifted

Answer 13

Climates changed, geographic barriers formed or were removed and species evolved into two different species or went extinct

Question 14

What causes volcanoes

Answer 14

Geological hotspots

Question 15

What are volcanoes

Answer 15

A vent in earths surface that emits gas ash and molten lava leaves behind islands

Question 16

Divergent plate boundary

Answer 16

Plates are pulled apart

Question 17

Convergent plate boundary

Answer 17

Plates collide heavier plate goes under responsible for the andes mountains

Question 18

Transform fault boundaries

Answer 18

Move past each other

Question 19

Subduction

Answer 19

One plate passing under another

Question 20

Fault

Answer 20

Fracture in rock where there is movement

Question 21

Fault zone

Answer 21

Form in brittle lithosphere

Question 22

What is the rock cycle

Answer 22

Constant formation and breakdown of rocks it is the slowest of all of earths cycles

Question 23

Minerals

Answer 23

Solid chemical substances that have a uniform structure and form under specific temps and pressure they are usually made up of gold or silver

Question 24

What are the three main types of rocks

Answer 24

Igneous metamorphic and sedimentary

Question 25

Igneous rock

Answer 25

Are formed from magma when lava cools and hardens contains basalt and granite forms intrusive or extrusive

Question 26

Sedimentary rocks

Answer 26

Forms when mud sands and gravel are compressed by overlapping sediments sedimentary rocks holds fossil record

Question 27

Metamorphic rock

Answer 27

Form under high-pressure and temperatures

Question 28

What is the difference between weathering and erosion? Why are both processes important?

Answer 28

Weathering relies on physical and chemical weathering to break down rocks! Erosion is the physical breakdown of rocks. They both return chemical elements and rock fragments to the earth

Question 29

What are some physical weathering caused by?

Answer 29

Wind water ice, plant roots

Question 30

What are chemical weathering caused by?

Answer 30

Most important on primary minerals which are turned into secondary minerals, lichens, acid rain

Question 31

Why is soil formation important?

Answer 31

Median for plant growth primary filter for a water habitat for a living organisms