Rock Cycle

Builds, destroys, and changes rocks from one

form to another.

Millions of years to happen.

Ways Rocks can Change:

Erosion – water, wind,& weather wear away at rocks

Cementation – sediments pressed together

Melting – heat from inside the E melt rocks.

Ways to become Igneous:–Sedimentary pulled into the crust & melts as magma

–Metamorphic melts deep inside the Earth as magma

–AND THEN: Cooling and Crystallization

Ways to become Metamorphic:–Sedimentary pulled into the crust – extreme heat & pressure

–Igneous Intrusive: extreme heat & pressure

–Igneous Extrusive pulled into the crust – extreme heat & pressure

Ways to become Sedimentary:–Igneous Extrusive erosion & deposition gives Sediments that cement & compact

–Metamorphic exposed to surface, erosion & deposition gives Sediments that cement & compact

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Rock Cycle Process

Igneous Metamorphic

Sedimentary Metamorphic

Metamorphic Igneous

Sedimentary Igneous

Igneous Sedimentary

Metamorphic Sedimentary

What type of Rock is it?

Number 1 – 10

Answer the best you can – use your notes….

1) Wind breaks small bits from large rocks. Rain takes the particles to a creek. They drop to the bottom and harden over time into limestone.

2) A volcano sends lava out of its cone. The lava cools as it falls and makes basalt.

3) A slow river puts soft, wet clay on a dead fish. The piled clay lies in place for years. The fish body is replaced with stone.

4) Melted rock moves in the Earth. It cools as it nears the Earth’s surface.

5) The weight and pressure of a mountain over time turns shale into slate.

6) Space in packed sand on the sea floor fills with minerals in the water. These minerals over time become cemented and turn in to sandstone.

7) Magma presses against limestone. Over time it forms marble.

8) The continental plates move and make folds in the rock. This pressure can cause granite to form into gneiss.

9) The ocean waves blast coral into bits which settle on old shells. The coral and shell particles build up. Over the years they harden together to form coquina.

10) Lava flows in huge sheets on the Earth. It cools quickly into obsidian.