rock

• ROCK

  A) BASALT

  B) PUMICE

  C) BIOTITE

  D) PYROPHYLITE

  E) BITUMENOUS

  F) BERYL

  G) RHYOLITE

  H) SERPENTINE

  I) DIATOMITE

  J) CALCITE

  
• What are the three types of rocks found on Earth?

  Igneous, Sedimentary, and Metamorphic
• Why is it important to know the differences between the three types of rocks?

  It allows us to learn about Earth’s past.
• How are Igneous Rocks formed?


  By melting, cooling, and crystallization of other rocks.
• What geological processes lead to the formation of Igneous Rocks?

  Volcanic activity, hot spots, and melting in the mantle.
• Where are Igneous rocks commonly found?

  Along plate boundaries or mantle hot spots.
• How are Igneous rocks classified based on texture?

  Glassy, Aphanitic, Phaneritic, and Porphyritic.
• What does crystal size indicate about the cooling history of Igneous rocks?

  The larger the crystals, the slower it cooled.