How can the Sun help us explore other planets? Vocabulary

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