Chapter 2 Lesson 1 vocab

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Across
  1. 1. thin layer of gases that envelop Earth.
  2. 3. average weather conditions in a region or an area over a longer period.
  3. 6. complete trip around the sun.
  4. 8. imaginary line that runs through the earth's center.
  5. 9. to move around the sun.
Down
  1. 2. water deposited on earth in the form of rain.
  2. 4. occur when the day and night are both 12 hours long.
  3. 5. a region of reduced rainfall on one side of a high mountain.
  4. 7. beginning of summer.