Science crossword

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Across
  1. 8. a process in which measurement are used and tests
  2. 9. A animal with a backbone
  3. 10. any change in the DNA sequence of a cell
  4. 11. a chemical substance
  5. 12. through
  6. 16. A other word for a battery
  7. 17. An animal that lives in the ocean
  8. 19. source a object that makes light
  9. 20. animal that cannot regulate their internal body
Down
  1. 1. a processes of a person,animals,or plants
  2. 2. A object that makes a noise when electricity
  3. 3. A component that allows electricity flow through
  4. 4. a device that stores chemical energy
  5. 5. A animal that has a scale
  6. 6. A type of a animal that has feathers
  7. 7. A animal that has fur and warm blooded
  8. 13. A other word for child
  9. 14. A liquid that is bad for you
  10. 15. A place that animal live
  11. 18. a animal that doesn’t have a backbone