Changes to Earth's Surface
Terms
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- An ____ is a sudden release of energy in Earth's _____, causing the ground to shake.
- earthquake; crust
- A rigid block of Earth's crust and upper mantle rock is a ______.
- plate
- A ______ is a physical feature on Earth's surface, such as a mountain or a valley.
- landform
- The remains or traces of past life found in Earth's crust are called _____.
- fossils
- Molten rock from Earth's mantle is _______.
- magma
- A ____ is a break in Earth's crust , along which peices of the crust move.
- fault
- ______ is the process of breaking rock into silt, sand, and other tiny pieces called sediment.
- weathering
- Lava is magma that reaches Earth's surface through an opening, called a ______, in the Earth's crust.
- volcano
- The downhill movement of rock and soil because of gravity is ______.
- mass movement
- The _____ is the layer of rock beneath Earth's crust.
- mantle
- The theory that the continents move over Earth's surface is _____.
- continental drift
- _____ is the supercontinent that held all of Earth's land 225 million years ago.
- Pangea
- _____ is the process of moving sedimetn from one place to another, and ______ is the process of dropping, or depositing sediment in a new location.
- Erosion; deposition
- The _____is the center of Earth.
- core
- Name the three layers of Earth, beginning with the outermost layer.
- Crust, mantle, and core