Across
- 1. A substance or a state of matter.
- 4. A brief eruption flame.
- 6. A form of radiation.
- 8. The quality of being hot.
- 9. A continuous area or expanse which is free.
- 10. Convers into an ion or ions.
Down
- 2. The envelope of gases surrounding the earth.
- 3. A fixed luminous point in the night sky.
- 5. The star which the earth orbits.
- 7. The emission of energy.