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OLM Science6_3

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Grade 6, Chapter 3

Grade 6, Chapter 3

Published in: Technology, Business
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Transcript

  • 1. Chapter 3 Minerals of the Earth’s Crust What is a Mineral Section 1
  • 2. Mineral
    • A naturally formed inorganic with a crystalline structure
  • 3. Elements
    • Substances that can be broken down into simpler forms by ordinary chemical means
  • 4. Compound
    • A substance made of two or more elements
  • 5. Crystals
    • Solid geometric forms of minerals produced by a repeating pattern of atoms
  • 6. Crystal Classes
    • Isometric
  • 7. Crystal Classes
    • Hexagonal
  • 8. Crystal Classes
    • Tetragonal
  • 9. Crystal Classes
    • Orthorhombic
  • 10. Crystal Classes
    • Monoclinic
  • 11. Crystal Classes
    • Triclinic
  • 12. Silicate Minerals
    • Minerals that contain Silicon & Oxygen
  • 13. Non silicate Minerals
    • Minerals that don’t contain a combination of Silicon & Oxygen
  • 14. Chapter 3 Minerals of the Earth’s Crust Identifying Minerals Section 2
  • 15. Mineral Color
    • Minerals come in different colors & shades
  • 16. Luster
    • The way a surface reflects light
  • 17. Cleavage
    • The tendency of some minerals to break along flat surfaces
  • 18. Fracture
    • Break unevenly along curved or irregular surfaces
  • 19. Hardness
    • Minerals resistance to being scratched
  • 20. Density
    • Measure of how much matter there is in a given amount of space
  • 21. Special Properties - Fluorescene
    • Glow under ultraviolet light
  • 22. Special Properties – Chemical Reaction
    • “Fizz” when a drop of acid is placed on it
  • 23. Special Properties – Optical Properties
    • Calcite will cause double image
  • 24. Special Properties – Radioactivity
    • Minerals that contain radium & uranium
  • 25. Special Properties – Magnetism
    • Natural Magnets
  • 26. Special Properties – Taste
    • Salty Taste
  • 27. Chapter 3 Minerals of the Earth’s Crust The Formation & Mining of Minerals Section 3
  • 28. Ore
    • Mineral deposit that can be mined for profit
  • 29. Surface Mining
    • Removal of minerals & other materials at or near the Earth’s surface
  • 30. Deep Mining
    • Removal of minerals & materials from deep within the Earth.
  • 31. Reclamation
    • Return land to its original state after mining

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