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Rock Test For 3rd Grade

10 Questions
Rock Test For 3rd Grade

Choose the best answer.

Questions and Answers
  • 1. 
    • A. 

      Sedimentary

    • B. 

      Metamorphic

    • C. 

      Igneous

    • D. 

      Volcanic

  • 2. 
    What is the hardest rock?
  • 3. 
    A _____________ rock forms with wind and water breaking the rock into bits.  Then the wind and water carry the bits of rock and soil away.  The bits settle into layers.  After a long time the layers harden into this kinda of rock.
    • A. 

      Igneous

    • B. 

      Sedimentary

    • C. 

      Metamorphic

    • D. 

      Diamond

  • 4. 
    These kind of rocks were melted then cooled and hardened.  Some cooled quickly and others more slowly.
    • A. 

      Sedimentary

    • B. 

      Igneous

    • C. 

      Metamorphic

  • 5. 
    A rock is naturally formed from ______________________.
    • A. 

      Sediments

    • B. 

      One or more minerals.

    • C. 

      Diamonds

    • D. 

      Crystals

    • E. 

      Pressure and temperature changes.

  • 6. 
    • A. 

      Color

    • B. 

      Shape

    • C. 

      Mohs Scale

    • D. 

      All of the above

    • E. 

      Only A and C.

  • 7. 
    The Mohs Scale identifies the rock by testing the ___________.
    • A. 

      Shape

    • B. 

      Color

    • C. 

      Hardness

    • D. 

      Softness

  • 8. 
    What is a trace or remains of a living thing that died long ago?
    • A. 

      A grave

    • B. 

      A diamond

    • C. 

      A fossil

    • D. 

      A mineral

  • 9. 
  • 10. 
    • A. 

      Soft parts of plants are easily destroyed as the rock forms.

    • B. 

      Animals have bones, plants have soft parts.

    • C. 

      Plants have hard parts.

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