7th Grade Science Final 2022

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Across
  1. 3. The process by which new oceanic crust forms along a mid-ocean ridge and older oceanic crust moves away from the ridge.
  2. 6. Theory that Earth's surface is broken into large, rigid pieces that move with respect to each other.
  3. 7. Resources that can be replaced by natural processes in a relatively short amount of time.
  4. 13. A rapid, downhill movement of soil, loose rocks, and boulders.
  5. 14. The process that occurs when one tectonic plate moves under another tectonic plate.
  6. 15. Energy from the sun.
  7. 16. Electricity produced by flowing water.
  8. 17. Deep, underwater troughs created by an oceanic plate subducting under another plate at a convergent plate boundary.
  9. 19. A solid that is naturally occurring, inorganic, and has a crystal structure and definite chemical composition.
  10. 21. Things that have all the characteristics of life.
  11. 22. A group of organisms that have similar traits and are able to produce fertile offspring.
  12. 24. A deposit of minerals that is large enough to be mined for a profit.
  13. 25. The way a mineral reflects or absorbs light at its surface.
  14. 26. Magma that erupts onto Earth's surface.
  15. 27. The color of a mineral's powder.
Down
  1. 1. The laying down or settling of eroded material.
  2. 2. Molten rock beneath Earth's surface.
  3. 4. Energy released from atomic reactions.
  4. 5. Name given to a supercontinent that began to break apart approximately 290 million years ago.
  5. 8. The movement of Earth's continent's over time.
  6. 9. A pile of windblown sand.
  7. 10. Energy produced by burning organic matter, such as wood, food scraps, and alcohol.
  8. 11. Resources that are used faster than they can be replaced by natural processes.
  9. 12. The moving of weathered material, or sediment, from one location to another.
  10. 18. A large mass of ice, formed by snow accumulation on land, that moves slowly across Earth's surface.
  11. 20. The series of processes that change one type of rock into another type of rock.
  12. 23. Thermal energy from Earth's interior