Hayden Valley Field Trip


1.	pieces of Earth's crust that move relative to each other
3.	Earth's crust or outermost layer of the Earth
5.	vast slow moving masses of ice that carve and shape landscape
7.	mixture of gases surrounding a planet
8.	location where magma near the Earth's surface expells (releases) heat
9.	molten rock still insdie the Earth, called lava when on the surface of the Earth
10.	Motion due to heat transfer
11.	thermal features that only release gas: steam vent
12.	the amount of groundwater in a given area
14.	the beginning of a river or stream
15.	all living and non-living things operating together with an area
16.	having to do with the study of the earth, its origin, structures, and systems
17.	animals that eat both vegetation and meat
19.	hard, dense, and hot innermost layer of the Earth
20.	the breaking down of rocks or soil
21.	to seek food that others have killed
23.	tiny life forms such as bacteria


2.	disastrous, devastating
4.	environments in which life forms usually live or grow
6.	broken up pieces of rock
9.	layer of Earth just below the crust, has both liquid and solid properties
13.	animals that eat only plants
14.	plants that look like grassess, but have solid stems
18.	earth's features that erupt hot water
22.	having to do with water