Across
- 3. ordinary; not powered by nuclear energy
- 5. offering an environment where plants, animals, or humans can live or grow easily
- 7. the spreading of light or other waves as it by an object
- 11. working closely and well together
- 12. broken down;of lesser quality
- 13. coming from, existing, or occurring someplace other than Earth.
- 14. a planet orbiting a star that is not our sun
Down
- 1. having the characteristics of basalt
- 2. to celbrate the first use of something
- 4. the gases surrounding a planet
- 6. a clue indicating life
- 8. to change data into numbers, letter, and symbols
- 9. a large group or number of things
- 10. sulfide a flammable gas found in many mineral waters and in rotting matter