4-1: How can the Sun help us explore other planets?

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