Interior Structure of the Earth
The thinnest layer of the Earth
What is crust
The rock cycle will never _____
What is end
Weathering is
What is when rocks and other materials on Earth's surface are constantly being broken down
Volcanoes are created by these boundaries
What is convergent
The surface of Earth is constantly being changed by both the forces of nature and _____ ______
What is human beings
The thickest layer of the Earth
What is mantle
A sedimentary rock turns into a metamorphic rock because of this
What is heat and pressure
Mechanical weathering is one kind of weathering and the other kind is
What is chemical
He presented the theory of Continental Drift
Who is Alfred Wegener
The actions of people often encourage _______ and __________
What is erosion and weathering
What magma is called when it reaches the surface
What is lava
An igneous rock is formed when this event occurs
What is when magma cools
Erosion is
What is the wearing away and removing of clay, sand, and rock fragments
Transform boundaries form these
What are earthquakes
Plant leaves protect the soil from the sun, wind, and this
What is water
This layer is made out of solid iron and nickel
What is the inner core
__________ occurs when piles or layers of sediment build up and become buried under more sediment
What is deposition
Rocks move and change due to weathering, erosion, and
What is deposition
What Pangaea means
What is "all lands"
It takes this long for the soil in an area affected by erosion to replace soil
What is hundreds off years
It is 1400 miles thick
What is the outer core
_________, _________, _____, and ____ are four kinds of sedimentary rock
What is limestone, sandstone, shale, and coal
Erosion is caused by ____, ___, _______ _____, and _____
What is wind, ice, running water, and waves
Most divergent boundaries form here
What is on the ocean floor
One example of human impact is when ______ companies clear the land of trees.
What is mining