Show:
Breaking Rocks
Moving Rocks
Plate Motion
Volcanoes
Earthquakes
100
The process that causes rocks to break down or become smooth.
What is weathering?
100
The process of moving weathered rock from one place to another.
What is erosion?
100
An opening that allows magma to reach earth's surface.
What is a volcano?
100
When two plates slide against each other this natural event is likely to occur.
What is an earthquake?
200
When the temperature drops, this substance can form inside the cracks of rocks and cause weathering.
What is ice?
200
The dropping of weathered rock by wind or moving water.
What is deposition?
200
The theory that Earth's crust is divided into plates that are always moving.
What is plate tectonics?
200
A volcanic eruption begins in this layer of Earth.
What is the mantle?
200
This scale is used to measure the magnitude of an earthquake.
What is the Richter scale?
300
This part of a plant can grow within a rock, causing the cracks in the rock to grow larger.
What are roots?
300
The bits of rock left behind by slow-moving water.
What is sediment?
300
What landform is created when two continental plates move toward each other?
What are mountains?
300
This substance formed below earth's crust reaches the surface through heat and pressure.
What is magma?
300
This tool is used to measure energy waves that occur before and during an earthquake.
What is a seismograph?
400
This physical force can cause rocks to fall and break.
What is gravity?
400
This landform can be carved by moving river water and the process of deposition.
What is a canyon?
400
A land feature that can be formed when two plates pull apart from one another.
What is a canyon?
400
Cinder cone volcanoes are formed by this kind of eruption.
What is explosive?
400
The point on earth's surface directly above the focus of an earthquake.
What is the epicenter?
500
These toxic substances sometimes found in water and rain can cause weathering in rocks.
What are chemicals?
500
In the Great Plains, what natural resource protects against erosion?
What is grass?
500
Tectonic plates move over this layer of the earth.
What is the mantle?
500
Alternate types of eruptions form this kind of volcano.
What is composite?
500
Earthquake motion is most severe at this location.
What is the epicenter?