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Emma's Guide to Rocks and Minerals

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Emma's Guide to Rocks and Minerals - Page Text Content

S: A Guide to Rocks and Minerals

BC: Thank you for reading my guide to rocks and minerals. I hope you learned a lot!

FC: Emma's Guide to Rocks and Minerals

1: A rock is made from minerals and other materials. Rocks come from the rock cycle. There are 3 major types of rocks. Igneous, Metamorphic, and Sedimentary.

2: For thousands of millions of years, small pieces of the Earth have been broken down and worn away by wind and water. The small pieces are then washed down stream and settle at the bottom of oceans and lakes. they then begin to layer on top of each other and combined with countless amounts of pressure they form rock. Sedimentary rocks are classified by the organized type of material that they are made by.

3: Clastic sedimentary rocks are made of fragments of other rocks called sediments. Larger pieces are called clasts or grains. Muddy and small pieces are called matrix. In a clastic sedimentary rock the matrix and the clasts get held together with mineral crystals that are called cement. Organic Sedimentary rocks are rocks that have fossils and grows organically in the Earth.

4: Intrusive igneous rocks are formed from magma, underground inside volcanoes. Extrusive igneous rocks are formed from cooling lava above ground. Igneous rocks are classified by their origin, texture, and mineral structure.

5: Metamorphic rocks are formed when either sedimentary rocks or igneous rocks are put under tremendous heat and pressure. Foliated metamorphic rocks can be formed from sedimentary rocks; and, non-foliated metamorphic rocks are formed from igneous rocks.

6: Mineral Facts 1) They are inorganic- never came from a living thing 2) They can only be found in nature 3) They are made up of crystals 4) They are solids 5) They are made up of chemicals

7: Tests 1) density- mass/volume 2) Streak- the color left on the plate 3) The acid reaction test 4) the scratch test- the hardness 5) color 6) cleavage/fracture

8: The Rock Cycle

9: A process in which rocks turn into other rocks. Igneous rocks turns into sedimentary and metamorphic rocks. Metamorphic rocks turn into igneous and sedimentary rocks. Sedimentary rocks turn into metamorphic and igneous rocks

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  • By: Lara K.
  • Joined: over 6 years ago
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  • Title: Emma's Guide to Rocks and Minerals
  • A simple explanation to what's going on in the rock cycle.
  • Tags: None
  • Published: over 6 years ago

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