2012年10月28日星期日

ROCK CYCLE

1. Rock Cycle Summary

  The rock cycle is the process that changes rocks from one rock from one another rock over time. This cycle is countinuous and it constantly occuring all over earth. Igneous rock sediments by winds
or other thing else bring to other areas(weathering and erusion), then they pressure and comentated to form sedimentary rock.that is how the sedimentary rock became magma by melting.

2.Rocks-Vocabulary
-Metamorphic rock: Meatamorphic rock formed metamorphism.
-magma : melt rock inside of volcano.
-lava: .cool down magma outside of  valcano.
-solidification: liquid change to solid.
-igneous rock:cooling down of magma
-erusion:move to other area.
-sediment:sands
-compaction:push together
-cementation:glue together
-sedimentary rock: it's formed by sands, soil,etc.

3.rock type

Metamorphic rock: foliated(has the layers) , non-foliated (no layers)                                                              
foliated
 non-foliated
Igneous rock:intrustive rock and extrutive rock

extrutive rock
intrustive rock

Sendimentary rock:clastic(sediments),crystalline(cystals) and bioclastic(died aniamls)
clastic
cystalline
bioclastic

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