Lesson 15 Crossword puzzle

123456789
Across
  1. 5. occurring or moving in circles
  2. 7. the outer boundary
  3. 8. a sphere
  4. 9. Cautious and watchful
Down
  1. 1. using figures of pictures
  2. 2. a shape or outline
  3. 3. possessing information about many subjects
  4. 4. Roundabout
  5. 6. path of one body as it revolves around another body