Topic 5 Vocabulary

12345678910111213141516
Across
  1. 1. naturally occurring nonliving solids in Earth's crust
  2. 5. change that happens because of some kind of action
  3. 7. made up of one or more minerals
  4. 8. a flammable gas
  5. 10. coal, oil, and natural gas are examples of these
  6. 11. humans and all livings things need this to survive
  7. 14. something found in nature that humans use
  8. 16. energy that comes from the energy of moving water
Down
  1. 2. a material that is made by nature at least as quickly as people use it
  2. 3. presence of substances in the environment that are harmful to humans and other organisms
  3. 4. the practice of protecting the environment
  4. 6. changes
  5. 9. energy from the sun
  6. 12. not made fast enough to replace what is used
  7. 13. put into groups
  8. 15. getting as much as you can from something and not wasting it