4th Grade-Ch. 8 Lesson 1 What Are Minerals

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4th Grade-Ch. 8 Lesson 1 What Are Minerals

  1. 1. Ch. 8 Lesson 1 What are minerals?
  2. 2. Activity-How can you classify rocks and minerals? <ul><li>Observe the rock and mineral samples with a hand lens. </li></ul><ul><li>Describe the samples. </li></ul><ul><li>Tell how the samples are alike and different. </li></ul><ul><li>Classify the samples into 2-4 groups. </li></ul>
  3. 3. minerals natural nonliving solid crystals make up rocks each has particular shape rock-forming minerals (ex. mica)
  4. 4. Each mineral has a particular shape.
  5. 6. color of mineral’s powder when scratched on special plate streak use Mohs scale hardness way mineral’s surface reflects light luster easiest to see color description physical properties of minerals
  6. 7. Luster Tourmaline has a glassy luster. Gold has a metallic luster. Talc has a pearly luster. Metallic Glassy Waxy Greasy Pearly Dull Silky Earthy
  7. 9. the higher the number, the harder the mineral scale that ranks minerals from softest to hardest:
  8. 10. talc 1.
  9. 12. diamond 10.
  10. 13. pyrite mica malachite limestone hematite granite citrine calcite brownstone amethyst Name of mineral Color of mineral Luster Color of streak

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