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Earth science
Any of several geological sciences that are concerned with the earth, its origins, and all of its various structures and physical forms and phenomena.
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Earth science > Geology 
outcrop
Earth science; Geology
An area where the rock that makes up the Earth's crust is visible and not covered with soil.
oasis
Earth science; Geology
An area in a desert where there is enough water for plants to grow. An oasis forms when groundwater lies close enough to be reached by wells.
pahoehoe
Earth science; Geology
A type of lava that has a smooth, swirled surface. The swirled surface forms when the lava cools and hardens.
peninsula
Earth science; Geology
An area of land that projects into a body of water. Three sides of peninsula are bordered by water.
plate tectonics
Earth science; Geology
A theory in geology that states that the Earth's crust and upper mantle is divided into a number of large, plate like sections.
prairie
Earth science; Geology
A large area of flat or rolling grassland. The prairies of North America extend from the Great Lakes to the Rockey Mountains.
pumice
Earth science; Geology
A light weight igneous rock that has holes like a sponge and is usually a light color. Pumice forms from hardened lava.
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)