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BELLWORK. You found a mineral that can scratch quartz but can be scratched by corundum. What mineral do you possibly have?. ESSENTIAL QUESTION. How are rocks formed and classified?. Vocabulary. Rock cycle

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Presentation Transcript
bellwork
BELLWORK
  • You found a mineral that can scratch quartz but can be scratched by corundum. What mineral do you possibly have?
essential question
ESSENTIAL QUESTION
  • How are rocks formed and classified?
vocabulary
Vocabulary
  • Rock cycle
    • the series of processes in which a rock forms, changes from one type to another, is destroyed and forms again by geological processes.
  • Rock
    • a naturally occurring solid mixture of one or more minerals or organic matter.
  • Erosion
    • The process by which wind, water, ice, or gravity transports soil and sediment from one location to another.
vocabulary1
Vocabulary
  • Deposition
    • The process in which material is laid down.
  • Composition
    • The chemical makeup of a rock; describes either the minerals or other materials in the rock.
  • Texture
    • The quality of a rock that is based on the sizes, shapes and positions of the rock’s grains.

Texture

Fine-grained Siltstone

Medium-grained Sandstone

Coarse-grained Conglomerate

the rock cycle
The Rock Cycle

Weathering and Erosion

Compaction and Cementation

Heat and Pressure

Melting

Cooling

classification of rocks
Classification of Rocks
  • Rocks are classified 2 ways:
    • Composition – what the rock is made of
    • Texture – The size and shape of the grains
slide10
QUIZ
  • How are rocks classified (2 ways)?
  • Name 3 things that can happen to a rock during the rock cycle.
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