8th Grade Academic Competition

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Across
  1. 3. When plates slide past each other
  2. 4. Efficient production of large numbers of identical goods
  3. 8. When plates move away from each other
  4. 9. Continents have moved slowly to their current locations
  5. 11. Workers refuse to work until employers meet their demands
  6. 14. Period of rapid growth in using machines for manufacturing and production
  7. 15. A large section of Earth’s oceanic or continental crust and rigid upper mantle that moves around on the asthenosphere
  8. 16. Current in Earth’s mantle that transfer heat in Earth’s interior and is the driving force for the plate tectonics
  9. 18. When one plate goes underneath another
Down
  1. 1. Theory that the Earth’s crust and upper mantle are broken into plates that float and move around on a plastic-like layer of the mantle
  2. 2. All land
  3. 5. Theory that new seafloor is formed when magma is forced upward toward the surface at the mid-ocean ridge
  4. 6. Groups that tried to improve pay and working conditions
  5. 7. Strategy of hiring families and dividing factory work into simple tasks
  6. 10. Cloth items
  7. 12. Parts of a machine that are identical
  8. 13. Based on water powered mills that employed young unmarried girls from local farms
  9. 16. When plates collide with each other
  10. 17. The tools used to produce items or to do work