Rocks

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Rocks

• Review game

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1. Describe 2 pathways a sedimentary rock can take
   to become an igneous rock
2. Melting- cooling
3. Heat/pressure-metamorphic rock-melting-cooling

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• 2) What step in the rock cycle helps metamorphic
  rock to form?
• Heat Pressure

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• 3) Describe 2 pathways a igneous rock can take to
  become a metamorphic rock
• heat/pressure- metamorphic rock
• Erosion- deposition- compaction- sedimentary
  rock- heat/pressure- metamorphic rock

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• 4) What step helps turn any kind of rock into a
  sedimentary rock?
• Erosion

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• 5) A sedimentary rock made up of rounded
  fragments of other rocks is called
• A Clastic rock

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• 6) What step in the rock cycle would be required
  to change gneiss into sandstone?
• Erosion

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• 7) A series of processes on Earth's surface and
  interior that slowly changes rocks from one kind
  to another is called
• Rock cycle

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• 8) The texture of a metamorphic rock that has
  grains arranged in parallel layers is described
  as
• foliated

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• 9) Where does the heat that changes a rock into
  metamorphic rock come from
• mantle

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• Rocks are changed into metamorphic rock through
  what ways?
• Heat pressure

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• Rocks formed by things that were once alive are
  called what?
• Organic rocks

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• How are clastic sedimentary rocks formed?
• When sediments are compacted, and water reacts
  with the chemicals in the minerals making them
  stick together. (cementation)

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• Describe the process of cementation as it applies
  to sedimentary rocks.
• water reacts with the chemicals in the minerals
  making them stick together.

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• Describe deposition.
• When sediments build up on top of each other in
  one place

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• Describe erosion.
• Process where rock is broken down into smaller
  pieces and transported to a different location

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• Some igneous rocks have a porphyritic texture.
  Describe a porphyritic texture.
• Large grains scattered on a background of much
  smaller crystals

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• What is the most abundant intrusive rock?
• Granite

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• What is the most abundant extrusive rock
• Basalt

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• Describe a coarse grained rock.
• Large easy to see grains

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• How do geologists determine a rocks texture?
• Grain size, shape, and pattern

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• 21) A metamorphic rock that has grains arranged
  in bands is said to be what? Foliated

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• Give 2 examples of a clastic rock.
• Shale, conglomerate, sandstone, breccia

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• 23) Sandstone changing to quartzite is an example
  of what process?
• Metamorphism (heat/pressure)

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• 24) During the rock cycle, forces inside Earth
  can push rock down toward the heat of the mantle,
  and produce what type of rock?
• Metamorphic