Unit 4 Lesson 1

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Across
  1. 5. the seventh planet from the Sun in our solar system
  2. 7. a pretend version of something that scientists use when the real thing is too big, small, or complicated to work with
  3. 8. a panel that can absorb the Sun's light to use as a source of energy
  4. 9. the third planet from the Sun
  5. 10. describes when there is a lot of visible light
  6. 11. the fourth planet from the Sun
  7. 13. the eighth planet from the Sun
  8. 14. the amount of space between two things
  9. 15. circling another object like the Earth around the Sun
Down
  1. 1. the second planet from the Sun in our solar system
  2. 2. all the planets and other objects that orbit around a star
  3. 3. a large round object in outer space that orbits a star
  4. 4. the fifth planet from the Sun
  5. 6. energy from the Sun that can warm things up and be made into electricity
  6. 11. the first planet from the Sun
  7. 12. the sixth planet from the Sun in our solar system
  8. 14. describes when there is not a lot of visible light