Earth Science

3. system of drains that prevents flooding during heavy rainstorms
7. the study of earthquakes and seismic waves
8. tectonic plates suddenly slide around and the plates shake, and the energy from that creates waves that echo through Earth
10. a constructive process whereby soil and rock that are eroded from one location are dropped as sediment in another location
12. People, animals, insects, and reptiles all disturb the upper layers of the Earth which makes it more easy for weathering and erosion to occur; humans are the biggest 'disturbers' of the Earth.
13. a destructive process where Earth materials such as rocks and soil are broken down into smaller parts
14. the movement of materials from one place to another by natural methods
16. A landform made of sediment that is deposited where a river flows into an ocean or lake
17. a tool used to detect, measure, and record seismic waves
19. A deposit of wind-blown sand
20. adding sand back onto the beach after it has eroded away

1. processes that build up or create land at earth's surface
2. a natural feature of the earth's surface.
4. An enlarged bank built up on each side of a river to prevent flooding
5. a break in Earth's crust that lets magma come out from the mantle and onto Earth's surface
6. The tearing down of the Earth's surface including weathering, erosion, impact of organisms, earthquakes, and volcanoes
9. energy released by an earthquake is transferred to the column of water above it and creates waves that travel away from the area
10. a barrier that runs across a river or stream to control the flow of water
11. area where two or more tectonic plates meet and show movement
15. formed when tectonic plates collide and both push up. This creates hills and mountains.
18. sheets of very old ice that are the size of states and that move along Earth's surface, also create valleys as they slowly grind along the surface