Earth Day

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Across
  1. 4. in addition to or to a farther side
  2. 6. land, water or air that has been made dirty or unsafe
  3. 7. the solid part of the earth
  4. 8. it has your signature
  5. 9. people in positions of authority
  6. 11. a complete change in the way people live, work, or behave
  7. 14. a period of fighting between countries or groups
  8. 15. to help someone to learn
Down
  1. 1. things that are difficult to deal with or a source of trouble, worry
  2. 2. a puddle of liquid beyond the bounds of where it was meant to go
  3. 3. radio, television, & newspapers
  4. 5. the physical or mental state of a person, animal or thing
  5. 10. nation,homeland
  6. 12. 3rd planet from the sun; the one we live on
  7. 13. speaking