Exam final

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Across
  1. 3. when one or more physical properties change without chemical properties changing
  2. 6. the smallest particle of a element
  3. 7. the matirial that makes up our chroosones and stores our genetic information
  4. 9. used to predict the possible offspring fro a mating of two parents
  5. 10. a substance that is made when two or more elements combine
  6. 11. when a wave bounces back from matter they cannot pass through
  7. 13. the study of inheritance
  8. 15. the ability to combine chemically with other substances
  9. 17. a combination of two or more substances in any proportion
  10. 18. the smallest structural and functional unit of an organism
  11. 20. properties that can be measured when matter undrgoes a change to become completely different.
Down
  1. 1. a way to describe the traits we see
  2. 2. properties that can be measured or observed without changing the matter
  3. 4. a pure substance
  4. 5. the number of waves that pass through a point in a certain amount of time
  5. 8. a disturbance in matter that transfers energy
  6. 10. the highest point of a wave
  7. 12. _______=angle of reflection
  8. 14. the lowest point of a wave.
  9. 16. the monemers of protein.
  10. 19. when a gene slightly varieties from person to person.