Across
- 2. Power from the sun
- 6. Electrical energy from water power
- 8. The name of the fingerprint system used by law enforcement
- 10. The main radioactive mineral used to produce nuclear energy
- 11. What a fossil fuel releases when burned
- 12. The earliest water power system (2 words)
Down
- 1. Power from water
- 3. What a mineral is called if the atom is unstable
- 4. Coal, oil, and natural gas (2 words)
- 5. When fingerprints form (2 words)
- 7. All fingerprints are this
- 9. The very tiny characteristics of fingerprints