Earths layers
Plate tectonics
Soil
Rock cycle
100

How many layers of the earth is there?

4

100

What was the Pangea theory?

 When the continents were "connected"

100

What happens when soil builds up in river beds?

Flooding

100

What is W.E.D

Weathering. erosion. deposition

200

What is the 1st layer of the earth?

Crust

200

Does divergent plates move towards each other or spread apart?

Spread apart

200

How many inches is horizon o?

2

200

What rock is made from sediments?

Sedimentary rock 

300

What is the thickest layer of the earth?

Mantle

300

What do transform movement of plates cause?

Earthquakes and Tsunamis 

300

What two horizons are very similar?

E,B

300

How are metamorphic rocks formed?

Heat and pressure

400

Is the inner core a solid or liquid?

Solid

400

What do convergent plates form?

Volcanoes

400

Horizon A is how many inches?

10

400

What is the 3rd rock in the rock cycle?

Igneous

500

Which two layers make up the mantle? 

Asthenosphere and mesosphere.

500

What forms when land meets land?

Mountains, Metamorphic rocks.

500

Which horizon is unweatherd solid rock?

R

500

What is the only rock that forms in water?

Sedimentary 

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