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Earth science (also known as geoscience, the geosciences or the Earth Sciences), is an all-embracing term for the sciences related to the planet Earth. It is arguably a special case in planetary science, being the only known life-bearing planet. There are both reductionist and holistic approaches to Earth science. The major historic disciplines use physics, geography, mathematics, chemistry, and biology to build a quantitative understanding of the principal areas or spheres of the Earth system.
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Earth's spheres
- Geology describes the rocky parts of the Earth's crust (or lithosphere) and its historic development. Major subdisciplines are mineralogy and petrology, geochemistry, geomorphology, paleontology, stratigraphy and sedimentology.
- Geodesy and Geophysics (joined together in the IUGG) investigate the figure of the Earth, its reaction to forces and its potential fields (magnetic and gravity field). Geophysicists explore also the Earth's core and mantle and the natural deposits, Geodesists the movement of stars and satellites.
- Soil science covers the outermost layer of the Earth's crust that is subject to soil formation processes (or pedosphere). Major subdisciplines include edaphology and pedology.
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Answer to 11/5 science problem: Earth is 4.5 billion years old, and life began about 3.5 billion years ago (starting with single cells).
MathADon (Don Ellis) Sat, 07 Nov 2009 20:11:47 -0000
Answer to 11/5 science problem: Earth is 4.5 billion years old, and life began about 3.5 billion years ago (starting with single cells).
Digg Science: Was Life Founded on Cyanide from Space Crashes?: Comet and asteroid strikes may have seeded Earth with ... http://bit.ly/UvZMa
scienceRSS (scienceRSS) Sat, 07 Nov 2009 20:11:14 -0000
Digg Science: Was Life Founded on Cyanide from Space Crashes?: Comet and asteroid strikes may have seeded Earth with ... http://bit.ly/UvZMa
THE LAST APOCALYPSE: CORRELATING MYTH WITH EARTH SCIENCE http://ow.ly/zDxW
chicabruce (Alexandra Bruce) Sat, 07 Nov 2009 20:08:35 -0000
THE LAST APOCALYPSE: CORRELATING MYTH WITH EARTH SCIENCE http://ow.ly/zDxW
tectonic plates on earth recycle earths crust into mantle,Nuclear science strip earth of energy required 2 maintain spin o molten fluid core
the_sealab_2021 (cedar) Sat, 07 Nov 2009 19:44:28 -0000
tectonic plates on earth recycle earths crust into mantle,Nuclear science strip earth of energy required 2 maintain spin o molten fluid core
The Evidence for Evolution: http://ow.ly/A3aV [video] #Richard #Dawkins #Greatest #Show on #Earth #Evolution #Evidence #Science #Darwin
marcellojun (Marcello Jun) Sat, 07 Nov 2009 19:18:17 -0000
The Evidence for Evolution: http://ow.ly/A3aV [video] #Richard #Dawkins #Greatest #Show on #Earth #Evolution #Evidence #Science #Darwin
Seafloor Fossils Provide Clues On Climate Change - Science Daily: Assistant Professor of Earth and Environmenta.. http://bit.ly/49dj5G
celebritypaycut (Celebrity Paycut) Sat, 07 Nov 2009 18:33:09 -0000
Seafloor Fossils Provide Clues On Climate Change - Science Daily: Assistant Professor of Earth and Environmenta.. http://bit.ly/49dj5G
A1 Gemstone Globes - Offering globes, executive desk sets, maps and clocks, all handcrafted with an inlay of gemstones.
Meta Description: [ Many lines of quality home decor products like wrought iron fireplace screens, pot racks and a complete line of gemstone globes available at our online store. ]
Amber Stone Live - Fossils insects in Baltic amber and other fossils.
Meta Description: [ Collection inclusions in Baltic amber. - All you need to know about fossils insects in Baltic amber. Fossils insects and other fossils for sale. ]
Pin Hobbies - Triceratops Hills Ranch Dino-Domain collectibles (toys, pins, trading cards, models, dioramas, books).
Meta Description: [ Dino-Domain ]
Earth Science - Earth science materials for teachers, students and collectors. Rocks, minerals and fossils. Specimens and collections.
Meta Description: [ Rock, mineral and fossil specimens and earth science supplies for teachers, homeschoolers and collectors. ]
Earthprints Fossil and Mineral Gallery - A plethora of topics concerning fossils, minerals, rocks, meteorites and links.
Meta Description: [ Browse the universe: rocks gems minerals, geodes, rough rock, & igneous, metamorphic, and sedimentary rocks. Turn nature's treasures into unusual gift ideas with rock tumblers, gold prospecting equipment, bead supplies, lapidary and jewelry-making tools. ]
Rocks of Ages - Bookseller specializing in used, rare, and out-of-print books on earth science as well as mining artifacts and jewelry.
Meta Description: [ used books, bookstores, independent book dealers, booksellers ]
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S to S Gemstones - Polished stones used for jewelry, pendants, bracelets, bookends, lamps, and boxes.
Meta Description: [ precious gemstone jewelry pewter figurines,polished stone pendant jewelry and bracelets for sale,history of the gemstone,merkaba,laser wand ]
The Natural History Gift Store - Specimens for study and display, including meteorites, fossils and insect collections.
Meta Description: [ Unique Gift Ideas from The Nature Source including Fossils, Meteorites, Artifacts and Collectables. Please view our Natural History catalog. ]
Treasures of the Earth, Ltd. - Offers fossils, minerals, shells, and handcrafted items.
Meta Description: [ Treasures of the Earth sells Fossils, Minerals, Petrified Wood, Culteral Artifacts, and Decorative Items. ]
Where on Earth - Offers unusual gifts such as fossils, rocks and minerals, meteorites, cameos, alien items, boxes, gators, sharks, gems and gem carvings and didgeridoos.
Meta Description: [ From weird and dead stuff to alien, meteorite and unique unusual gifts ]
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