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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 > Soil science 
petrified
Earth science; Soil science
Changed into minerals and hardened into rock. Plant and animal parts, such as wood and bone, become petrified when water gets into them.
plain
Earth science; Soil science
A large area of flat land with few trees. A broad, flat area of the sea floor or on the surface of the Moon.
pyrite
Earth science; Soil science
A silver or yellow mineral made of iron and sulfur. Because it is shiny, pyrite is often confused for gold.
sand
Earth science; Soil science
Small grains or particles of broken down rock. Sand is coarser than silt and finer than gravel.
climosequence
Earth science; Soil science
A group of related soils that differ, one from another, primarily as a result of differences in climate as a soil-forming factor.
chlorite
Earth science; Soil science
A group of layer silicate minerals of the 2:1 type that has the interlayer filled with a positively charged metal-hydroxide octahedral sheet. There are both trioctahedral (e.g., ...
dirichlet condition
Earth science; Soil science
A boundary condition where a value for the variable of interest at each point in space and given a set of input values, a unique output can be determined.
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)