Chapter 1

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Across
  1. 5. Energy can NOT be created or destroyed.
  2. 6. What all living things on Earth are made of.
  3. 8. A type of data that uses specific numbers or amounts.
  4. 9. A well-tested explanation that unifies an observation.
  5. 11. The variable that is measured in an experiment.
  6. 13. An organized way of using evidence to learn.
  7. 15. A set of chemical reactions within an organism.
  8. 16. A type of reproduction that only requires one parent.
  9. 18. A subatomic particle with no atomic charge.
  10. 19. A scientific explanation that can be tested.
  11. 20. Chemical used by cells to grow and work.
Down
  1. 1. The ability to do work. You need this to do anything walk, talk, jump, even eat.
  2. 2. A logical interpretation based on prior experience.
  3. 3. Measures the amount of space an object takes up.
  4. 4. The study of life.
  5. 7. A signal to which an organism responds.
  6. 10. The maintaining of constant internal conditions or balance.
  7. 12. Determines whether the hypothesis is correct.
  8. 14. Information gathered through observations.
  9. 17. The ability or organisms to change over time.