6414371
Description
Mind Map by shagun bansal, updated more than 1 year ago
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Created by shagun bansal
over 8 years ago
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rocks
- igneous rocks
- 1) formed from fire
2) magma which erupts as lava cools down to form igneous rocks
3)some magma cools below the surface fo form igneous rocks
- examples-basalt and granite
- vertical lines of weaknesses
- 1) formed from fire
2) magma which erupts as lava cools down to form igneous rocks
3)some magma cools below the surface fo form igneous rocks
- sedimentary rocks
- second hand rocks
- weight of sediments above compresses those below to form sedimentary rocks
Annotations:
- sediments are pieces of rocks broken off from rocks which outcropped on the earths surface millions of years ago
- examples-sandstone limeston
- horizontal lines of weaknesses
- second hand rocks
- metamorphic rocks
- old igneous and sedimentary rocks
- rocks are changed due to heat and pressure
- slate- from clay
marble from limestone
- old igneous and sedimentary rocks
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