Environmental Terms

1. a vent in the surface of the Earth that emits ash, gases, or molten lava
4. a river or stream that flow into a larger river
7. layer of O₃ molecules in Earth’a atmosphere that protects us from ultraviolet radiation
9. an element with properties that allow it to conduct electricity and heat
12. enormous bodies of salt water that make up most of the Earth’s surface
13. type of rock formed from sediment deposited by water or air
15. the innermost layer of the Earth
16. the layers of gases that surround a planet

2. the outermost layer of the Earth
3. a horizontal layer in soil defined by distinctive physical features such as texture and color
5. type of rock formed directly from magma
6. the layer of Earth above the core that’s contains magma
8. the accumulation or depositing of eroded material such as sediment, rock fragments, or soil
10. the most abundant gas on Earth
11. type of rock that forms when sedimentary, igneous, or metamorphic rock is subjected to high temperature and pressure
14. molten rock