Science Chapter 3 Review

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Across
  1. 3. Always toward the center of Earth
  2. 4. the planet on which we live
  3. 6. something scientists make to answer questions about the real world
  4. 7. to move in a regular path around something
  5. 9. information that supports an answer to a question
  6. 10. The opposite of down
  7. 12. the pull between Earth and other objects, which acts even without touching
  8. 15. a period of time that is 24 hours long and includes daytime and nighttime
  9. 17. an attempt to find out about something
  10. 18. the only star in our solar system
  11. 19. a scientist who studies stars, planets, and other objects in the universe
Down
  1. 1. a description of how something works or why something happens
  2. 2. the sun, the planets that orbit the sun, and other objects that orbit the sun
  3. 5. an arrangement of stars as seen from Earth
  4. 8. a huge object in space that gives off heat and light
  5. 11. something we observe to be similar over and over again
  6. 13. Earth spins on its _______
  7. 14. observations or measurements recorded in an investigation
  8. 16. the length of time it takes for Earth to orbit the sun one time