Unit 3 Week 1

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Across
  1. 2. how much of something there is
  2. 3. how hot or cold something is
  3. 4. system the sun and the planets that move around it
  4. 5. heat
  5. 7. the study of stars and planets
Down
  1. 1. provide what is needed for something
  2. 4. the outside of something
  3. 6. the world