Chapter 3-5 science crossword.

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Across
  1. 3. A supercontinent from hundreds of millions of years ago including all current continents'
  2. 9. A mountain where there is an area where magma and lava shoot out.
  3. 10. boundary When 2 plates move apart from each other.
  4. 11. boundary When 2 plates slide past each other.
  5. 13. When The earth's crust breaks and rocks slip past one another.
  6. 14. A very large body of water with almost no land around it divided into 5 oceans.
  7. 15. The small gradual movement of all of Earth's continents over time.
  8. 16. A tool that bounds sound off the sea floor to see the surrounding objects in the ocean.
  9. 17. When pieces of earth diverge onto land and create a valley.
  10. 18. When the ocean floor sinks under A deep ocean trench and goes back into the mantle.
  11. 19. When there is a big natural elevation from the surrounding area.
Down
  1. 1. The constant cycle of a layer of cooled magma being replaced on the ocean floor.
  2. 2. Long narrow trenches in the ocean.
  3. 4. The theory of Earth's plates slowly move all the time and this movement is caused by the convection currents in the mantle.
  4. 5. boundary When 2 plates come together.
  5. 6. Gaint underwater mountain ranges
  6. 7. A mixture of rocks, gas, and water that reach and go on or over the earth's surface.
  7. 8. A mixture of rocks, gas, and water that is under the earth's crust.
  8. 12. Remains from anything prehistoric that was living.
  9. 15. When any form of heat is transferred by a liquid.