Weathering
Erosion
Rocks
Volcanoes
Earth's
Structure
100
process through which larger rocks crack and break over time to form smaller particles
What is weathering?
100
Movement of material by water, wind, ice, gravity and/or people
What is erosion
100
a rock that forms when layers of sediments get stuck together
What is sedimentary rock
100
crust, mantle, core
What are the compositional layers of the Earth?
200
rocks are broken down by breaking and banging against other objects
What is physical weathering?
200
eroded materials that have been deposited
What are sediments?
200
rocks formed from the cooling and hardening of magma
What are igneous rocks?
200
generally non explosive volcano with shallow slopes
What is a shield volcano?
200
lithosphere, aesthenosphere, mesosphere, outer core, inner core
What are the physical layers of Earth?
300
breaking down of rocks through reactions with substances in the air and water
What is chemical weathering?
300
process by which eroded earth materials settle out in another place
What is deposition?
300
limestone, sandstone and shale
What are examples of sedimentary rocks?
300
explosive or non-explosive volcano with a conical shape, built quickly
What is a cinder cone?
300
molten rock found in the lithosphere and aesthenosphere
What is magma?
400
abrasion, root action and frost wedging
What are examples of physical weathering?
400
different rates at which layers of weathered earth materials are carried away by water, wind, ice, etc.
What is differential erosion?
400
basalt, pumice, scoria
What are examples of igneous rocks?
400
igneous rock formed when magma reaches the earth's surface; cools and crystallizes quickly
What is an extrusive rock?
400
this compositional layer is both solid and liquid
What is the core?
500
Lichen, oxidation and decaying plant matter
What are examples of chemical weathering?
500
type of igneous rock formed when magma remains in the earth's crust; cools and crystallizes slowly
What is an intrusive rock?
500
mixture of water and rock fragments that flow down the slopes of volcanoes through valleys
What is a lahar?
500
peridotite
What is the composition of the mantle?
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