SIGNS of LIFE

1234567891011
Across
  1. 2. Circling around a star or planet
  2. 4. Scientists who study the stars
  3. 7. Information
  4. 9. Tiny organisms that live almost everywhere
  5. 10. Curved pieces of glass that focus light
  6. 11. The top and bottom of planets
Down
  1. 1. Rubbed smooth and shiny
  2. 3. Worn down by natural forces
  3. 5. Living things like plants or bacteria
  4. 6. Creatures from the planet Mars
  5. 8. Waterways made by people