Scientific reading

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Across
  1. 5. a series of steps or actions that lead to a result.
  2. 6. the smallest units of a substance, made of bonded atoms.
  3. 8. the molecule that carries genetic information in living things.
  4. 13. rotted organic matter used to fertilize soil.
  5. 14. able to resist high temperatures without being destroyed.
  6. 16. places where garbage and waste are buried.
Down
  1. 1. related to the natural world (air, water, soil, plants).
  2. 2. something that cannot catch fire or burn.
  3. 3. any living thing.
  4. 4. a system where materials are reused or recycled continuously.
  5. 7. the substances things are made of.
  6. 9. a substance made of atoms or molecules used in reactions.
  7. 10. to break down food in the body.
  8. 11. a chemical material that can be molded into shapes.
  9. 12. a small brush used to clean teeth.
  10. 15. breakdown: when enzymes break large substances into smaller parts.