Unit 1: A Green Future

12345678910111213
Across
  1. 2. The ice caps in the arctic are _______.
  2. 4. a big, furry, dangerous animal that lives in the arctic
  3. 8. a safe place
  4. 9. cannot be defeated
  5. 11. a thick cover of ice over an area
  6. 13. easily harmed
Down
  1. 1. to become liquid
  2. 3. if you _____ the amount of trash you use, you will help the planet.
  3. 5. evil or cruel
  4. 6. global warming cause a ______ in sea levels.
  5. 7. important or necessary
  6. 8. safe
  7. 10. a synonym for disappear
  8. 12. a fossil fuel that is black, liquid, and comes from the ground.