Earth Day Webquest

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Across
  1. 2. the boundary where the land and the ocean meet
  2. 5. a map that shows shapes, contours and sizes of land
  3. 7. the month that Earth Day is celebrated
  4. 8. the highest point of an ocean wave
  5. 10. the continuous movement of water and water vapor from water sources to the air and land and back to the water source
  6. 12. a vent in the Earth's crust where molten rock and gas can escape from below the surface
  7. 14. an ocean wave caused by an earthquake or volcanic eruption
  8. 15. large chunk of ice that breaks away from a glacier
  9. 16. gas element that makes up 21% of the Earth's atmosphere
  10. 17. the highest mountain on Earth
Down
  1. 1. molten rock found below the Earth's surface
  2. 2. area of science that studies to protect the natural environment
  3. 3. the time it takes Earth to make one revolution around the sun
  4. 4. waste, gas, or emissions that destroys ecosystems
  5. 6. scientific term for all land on the planet
  6. 9. the time it takes Earth to make one rotation on its axis
  7. 11. the wearing away of land from water and wind
  8. 13. a small landmass completely surrounded by water