Unit 4 Lesson 1 How can the Sun help us explore other planets?

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