Vocabulary Crossword 3.3

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