Our Universe Unit 1 Vocabulary Review

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Across
  1. 2. everything in our solar system revolves around the sun
  2. 5. the force one body exerts on another due to its mass
  3. 7. modern non-optical telescope that uses radio waves emitted from distant stars and render those waves into visible images
  4. 9. everything in our solar system revolves around the earth
  5. 10. movement of a heavenly body around its axis
  6. 11. scientific idea that all that exists in our universe suddenly began nearly 14 billion years ago
  7. 12. Galileo's telescope that used two lenses to bend light to concentrate and then straighten an image
  8. 13. first day of spring or autumn
Down
  1. 1. Newton's telescope that uses a combination of mirrors and lenses to collect light and project an image
  2. 3. first day of summer or winter
  3. 4. the study of the planets, moons, stars, and other objects in space
  4. 6. movement of a heavenly body around another heavenly body
  5. 8. Newton's theory that any two objects exert a pull on each other that is proportional to the product of their mass, and inversely proportional to the square distance between them