Grade 9 / Science / Abeka / Chapter 8

66 Questions | Total Attempts: 67

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Grade 9 / Science / Abeka / Chapter 8

Science of the physical creation grade 9 chapter 8 practice test

Questions and Answers
  • 1. 
    The study of the earth
  • 2. 
    Earth's outer layer of rock; portion we are most familiar with
  • 3. 
    The portion of the crust underlying the continents; a rock chiefly composed of silica and alumina
  • 4. 
    The surest under the oceans; a denser rock that contains silica and significant amounts of magnesium
  • 5. 
    Deposits of sand and mineral fragments 
  • 6. 
    The most abundant element in the earth's crust; makes up 50% of the earth's crust by weight
  • 7. 
    Marks the lower boundary of the crust 
  • 8. 
    The middle layer of the earth
  • 9. 
    Marks the lower boundary of the mantle and lies roughly 2900 km beneath the surface
  • 10. 
    Central part of the earth
  • 11. 
    "float" like rafts on the plastic rock of the upper mantle 
  • 12. 
    Slow convection currents in the plastic rock of the upper mantle
  • 13. 
    One huge land mass
  • 14. 
    When a layer of rock breaks under the strain of the forces upon it and moves
  • 15. 
    Occurs when rocks along one side of a fault sink vertically
  • 16. 
    Occurs when rocks along one side of a fault move horizontally along the fault
  • 17. 
    Results when rocks on one side of a fault are thrust on top of the rocks on the other side
  • 18. 
    Formed by the bending or buckling of rocks under great force
  • 19. 
    Trough like structure
  • 20. 
    An arch like structure 
  • 21. 
    Formed when molten rock erupts from a hole in the earth's crust
  • 22. 
    Appear to be formed when molten rock is forced beneath an overflying rock layer, forcing the layer upward into a blister like dome
  • 23. 
    Thought to have been formed when the edges of two adjacent rock layers were pushed violently together, causing the layers to buckle like a wrinkled rug 
  • 24. 
    Some of the most spectacular mountains in the world 
  • 25. 
    Any trembling or shaking of the earth's crust; sudden movement of rock masses along a fault 
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