Lesson 2 Our planet Earth

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Across
  1. 4. A point at which,everywhere on Earth,days and nights are nearly equal in length
  2. 8. tectonics a process involving huge blocks of Earth's crust
  3. 9. A point at which days are longest in one hemisphere and shortest in the other
  4. 10. to support
Down
  1. 1. part of a whole
  2. 2. the process of depositing,or dropping,eroded material
  3. 3. is a process that breaks rocks down into tiny pieces
  4. 5. seams of Earth's crust
  5. 6. molten rock
  6. 7. a process in which water,ice,or wind remove small pieces of rock and move them somewhere else