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22 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What are the 7 layers of the Earth in order ? |
Atmosphere hyrdosphere Lithosphere Asthenosphere Deep Mantle Outer Core Inner Core
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ASLADOI |
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apox how old is the earth |
4.6 billion years old |
older than 200 million |
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what percent of the suns mass accounts for the total system mass |
98.8% |
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two types of planets |
Terrestrail and Gas Giants |
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what are the two elements mostly found in the atmosphere |
Nitrogen and Oxygen |
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what 4 elements make up the majority of earths mass |
Silicon , Oxygen , Magnesium and Iron |
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what is a mineral |
a naturally occuring Crystalline Solid |
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what is a crystal |
a single coherent mineral with geometric faces |
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Is glass a Crystalline |
no because it cools to rapid for crystals to form |
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Name the three types of rock and their features |
Ignious - cooled from liquid Sedimentary - formed from sediments - lots of little rocks Metamorphic - formed from intense heat and pressure |
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what are sediments |
accumilation of loose mineral grains
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what is a metal |
solids composed of metal atoms |
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what is the difference between magma and lava |
lava is above surface , magma is below |
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what are volatiles and give one example |
materials that turn into gas at surface Co2 So2 |
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2 components of the earths crust |
Oxygen and silicon |
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what is the method used to cycle rock that also helps drive plate tectonic motion ? |
convection |
found in ovens |
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what is the principle of super position ? |
oldest rock on the bottom newest on the top |
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are all layers of rock horizontal |
no most rock layers have been altered due to faults |
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Siccar point |
where the conformity of old and new rocks was discovered by james hutton |
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Alfred Wagner |
Polar explorer and metiorologist saw conitinents might fit together Paeleoclimatic evidence fossil evidence
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what was Harry Hess responsible for |
plate tectonics proposed seafloor spreading as continets drifted appart new ocean floor forms between continents when sea floor crust is forced under continental crust because of density |
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what is the difference between hot and cold magma |
hot magma - not magnetic - no direction - hot molecules cold- low temp- permanent magnitization
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