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Rocks

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Rocks Review game Describe 2 pathways a sedimentary rock can take to become an igneous rock Melting- cooling Heat/pressure-metamorphic rock-melting-cooling 2) What ... – PowerPoint PPT presentation

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Title: Rocks


1
Rocks
  • Review game

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

3
  • 2) What step in the rock cycle helps metamorphic
    rock to form?
  • Heat Pressure

4
  • 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

5
  • 4) What step helps turn any kind of rock into a
    sedimentary rock?
  • Erosion

6
  • 5) A sedimentary rock made up of rounded
    fragments of other rocks is called
  • A Clastic rock

7
  • 6) What step in the rock cycle would be required
    to change gneiss into sandstone?
  • Erosion

8
  • 7) A series of processes on Earth's surface and
    interior that slowly changes rocks from one kind
    to another is called
  • Rock cycle

9
  • 8) The texture of a metamorphic rock that has
    grains arranged in parallel layers is described
    as
  • foliated

10
  • 9) Where does the heat that changes a rock into
    metamorphic rock come from
  • mantle

11
  • Rocks are changed into metamorphic rock through
    what ways?
  • Heat pressure

12
  • Rocks formed by things that were once alive are
    called what?
  • Organic rocks

13
  • How are clastic sedimentary rocks formed?
  • When sediments are compacted, and water reacts
    with the chemicals in the minerals making them
    stick together. (cementation)

14
  • Describe the process of cementation as it applies
    to sedimentary rocks.
  • water reacts with the chemicals in the minerals
    making them stick together.

15
  • Describe deposition.
  • When sediments build up on top of each other in
    one place

16
  • Describe erosion.
  • Process where rock is broken down into smaller
    pieces and transported to a different location

17
  • Some igneous rocks have a porphyritic texture.
    Describe a porphyritic texture.
  • Large grains scattered on a background of much
    smaller crystals

18
  • What is the most abundant intrusive rock?
  • Granite

19
  • What is the most abundant extrusive rock
  • Basalt

20
  • Describe a coarse grained rock.
  • Large easy to see grains

21
  • How do geologists determine a rocks texture?
  • Grain size, shape, and pattern

22
  • 21) A metamorphic rock that has grains arranged
    in bands is said to be what? Foliated

23
  • Give 2 examples of a clastic rock.
  • Shale, conglomerate, sandstone, breccia

24
  • 23) Sandstone changing to quartzite is an example
    of what process?
  • Metamorphism (heat/pressure)

25
  • 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
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