Across
- 5. = base unit of length/distance
- 6. Study of outer space
- 9. = nature
- 11. = living
- 12. = cloud in space
- 13. = outer space beyond , far away from, the solar system
- 14. = ball of plasma, gives off light and heat
Down
- 1. = base unit of volume
- 2. = base unit of weight/mass
- 3. = make a guess about what we think might happen
- 4. = make groups of similar things
- 7. = non-living
- 8. = everything in space
- 10. = superheated gas