Chapter 1 - Living Things

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Across
  1. 3. All factors remain the same during the experiment.
  2. 6. The organism that is eaten.
  3. 8. The principle that life comes only from life.
  4. 9. Possible explanation for an event or set of observations.
  5. 11. An organism that kills and eats another organism.
Down
  1. 1. Involves making predictions, designing an experiment to test those predictions.
  2. 2. A hypothesis that is "supported" by many experiments over a period of time.
  3. 4. A factor that can change in an experiment.
  4. 5. All living things
  5. 7. Several different types of tissues that function together for a specific purpose.
  6. 8. The thin layer of air, land and water that is home to all living things on Earth.
  7. 10. The basic unit of organization.
  8. 12. Cells working together to perform a specific function.