8th Grade

1.Rock Cycle picture due Friday.

2.Notes Rock Cycle

Rock- Solid mixture, naturally occurring of more than 1 minerals and organic matter.

Process of rock forming- Rock Cycle: New rock forms from old rock. Recycling

Value of Rock- Humans used rock for tools building

Pyramids-limestone

Granite-building/counter tops

Geological process- weathering-water, wind, ice or heat break down a rock

Erosion-sediment moved from its source water, wind, gravity ice.

Deposition-sediments are deposited putting the sediments somewhere

Heat and Pressure- sedimentary rocks can go thru heat and pressure turn into a metamorphic rock

Uplift and rock cycle-many pathways for a rock to follow.

Rocks divided into 3 groups: Sedimentary, Igneous and Metamorphic

Texture-Size, shape and position of the grains that make up a rock- fine grained, medium grained

Composition-minerals a rock contains.

3. Answer questions page 35, 1-10.

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