Igneous Rocks
Sedimentary Rocks
Metamorphic Rocks, etc.
Layers of the Earth
Boundaries, etc.
100
What do igneous rocks start out as?
Magma or lava
100
What are the small pieces of minerals and rock that are formed from weathering?
Sediments
100
How are metamorphic rocks made?
Through heat and pressure
100
Which layer is the thinnest?
the Crust
100
What are the three different types of plate boundaries?
Divergent, Convergent, Transform
200
How do igneous rocks form?
When magma cools and hardens.
200
Rocks are broken down into sediments by what?
Weathering
200
In what type of rock are fossils found?
Sedimentary
200
Which later is composed of liquid iron and nickel?
The outer core
200
Tectonics plates float on top of what?
The mantle
300
Where is magma found?
Underground
300
Sediments are broken down by weathering and then move by what?
Erosion
300
What parts of animals and plants are usually fossilized?
The hard parts (bones, claws, teeth)
300
What does the outer core create?
The earth's magnetic field.
300
Transform boundaries slide past each other causing what?
Earthquakes
400
Where is lava found?
Above ground
400
Sedimentary rocks are formed in what?
Layers
400
When sediments are laid in a new location it is called what?
Deposition
400
Why is the inner core solid?
Because of the pressure from the rest of layers
400
How are divergent and convergent boundaries different?
Divergent divide and convergent collide.
500
Erupting volcanoes can cause the formation of what? (besides rocks)
Islands
500
Sedimentary rocks are made from the ____________ and _____________ of sediments.
compacting and cementing
500
What are three ways that erosion can happen?
Wind, water, and ice.
500
Which layer of the earth has the biggest mass?
the Mantle
500
How can we prevent soil erosion?
Plant grass or plants
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