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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 
ionic bond
Earth science; Geology
A chemical bond formed by the electrostatic attraction between positive and negative ions; for example, NaCl.
iron
Earth science; Geology
A meteorite consisting essentially of iron with up to 30% of nickel in solid solution.
iron core, large
Earth science; Geology
Mercury's large metallic core, three-fourths the size of the planet, makes it much denser than the Moon and the most iron-rich planet in the solar system. Surrounding the metallic ...
Ishtar Terra
Earth science; Geology
A highland area in the northern hemisphere of Venus (about the size of Australia) which stands several kilometers above the average planetary radius. It is separated from the ...
isostacy
Earth science; Geology
The condition of equilibrium, comparable to floating, of the units of the lithosphere above the asthenosphere. Also, isostatic compensation.
jovian
Earth science; Geology
Of or relating to the planet Jupiter. Also designating the outer, Jupiter-like gas giants which in addition to Jupiter, include Saturn, Uranus and Neptune.
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)