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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 
asteroids
Earth science; Geology
Any of the 1000’s of small rocky/metallic bodies that orbit the sun mostly between Mars and Jupiter; also referred to as minor planets.
atom
Earth science; Geology
A building block of matter, the smallest particle that has the chemical characteristics of a particular chemical element. It contains a nucleus of protons and neutrons surrounded ...
atomic mass
Earth science; Geology
The total number of protons and neutrons in the nucleus of an atom.
atomic number
Earth science; Geology
The number of protons in an atom, a quantity that determines which element the atom represents. Example: all atoms of oxygen have 8 protons.
augite
Earth science; Geology
A dark mineral of the pyroxene group, (Ca,Na)( Mg, Fe +2 , Al)(Si,Al) 2 O 6 . It is an essential constituent of many basic igneous rocks.
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)