SCIENCE

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Across
  1. 2. The force that pulls objects toward Earth.
  2. 4. The process plants use to make food using sunlight.
  3. 7. The person or voice telling a story.
  4. 8. A community of living and nonliving things interacting together.
  5. 9. A figure of speech comparing two things without using “like” or “as.”
  6. 10. A number that represents part of a whole.
  7. 13. A math sentence that shows two expressions are equal.
  8. 14. The path a planet or moon takes around another object.
Down
  1. 1. The layer of gases that surrounds Earth.
  2. 3. An animal with a backbone.
  3. 5. The wearing away of rock and soil by wind or water.
  4. 6. An educated guess in a scientific experiment.
  5. 9. A warm-blooded animal that has hair and produces milk.
  6. 11. When gas turns into liquid, like water droplets on a cold glass.
  7. 12. The ability to do work or cause change.