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Rocks and Minerals

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  • What is a mineral?
    a solid, nonliving material found in nature
  • Which property of minerals is measured by scratching the surface of the minerals?
    hardness
  • A rock that is formed when lava cools is called what type of rock?
    Igneous
  • How does sedimentary rock form?
    Pieces of rock and other materials squeeze together.
  • Is magnetism a property that can be seen? Without touching the rock?
    No
  • Emily finds a fossil in a rock. The fossil will help her determine the rocks...
    Age
  • Ana finds a rock that contains a fossil. Which type of rock does Ana most likely have?
    Sedimentary
  • A rock was placed under heat and pressure so that its properties changed. It is now a new type of rock. What type of rock is the new rock?
    metamorphic
  • Rocks are mostly made of...
    Minerals
  • Slate is a dark gray metamorphic rock. Which statement best describes how slate forms?
    heat and pressure turned a sedimentary rock into slate.
  • Donna is trying to identify a mineral. She notes that the mineral can easily break into flat sections. What property has she observed?
    cleavage
  • How can the streak of a mineral be tested?
    rub it across a tile to see the color of the powder it leaves.
  • How are coal, sandstone and granite similar?
    They are all rocks.
  • Which process would for an igneous rock?
    Melted rock cools and then hardens