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Things You Should Know About Rocks

Chelsea Esparza

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Across
3.an organic sedimentary rock
6.when the rock layers form parallel to each other
7.what forms when lava above the surface cools?
9.its a type of igneous rock; dark colored, fine-grained extrusive rock
13.wat process is going on when they say layers of small sediments are being compressed
15.extrusive or intrusive: such as granite, basalt
18.when sediments go through compaction and cemenation
19.when an igneaous rock goes through weather and erosion
Down
1.a volcanic rock; very light colored, frothy, lava that is full of gas
2.a short word for an igneous rock
3.remains of once living ocean organisms
4.another word for magma
5.when a sedimentary rock goes through heat and pressure
8.it contains calcium carbonate
10.very shiny natural volcanic glass
11.when mineral grains grow, re-arrange but dont form layers
12.when magma cools
14.extrusive or intrusive; such as pumice, obsidian
16.a detrital sedimentary rock made mainly of clay
17.when a metamorphic rock melts

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