Bill Nye Crossword

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Across
  1. 2. Covers 71% of the Earth's surf
  2. 5. A dry and sandy Ecosystem
  3. 6. Something that has not been changed
  4. 7. Different species that live across the world
  5. 9. When we run out of a type of animal
  6. 11. Needs lots of different types of plants and animals
  7. 12. Living and non living things in an eco system
Down
  1. 1. A chemical that helps grow plants
  2. 3. things that live on a farm
  3. 4. A muddy swampy area
  4. 8. Group of animals
  5. 10. Lizard, Snake, Turtles, Crocodiles are in this grouo