Across
- 4. Gas used to extinguish fire
- 5. Study of nature and properties of matter and energy
- 6. Number of types of Matter
- 8. A form of energy that is carried by the flow of electrons
- 10. Ozone Layer Protects us from
- 11. The Decayed organic material used as a fertilizer for growing plants
Down
- 1. Gas filled in Balloons
- 2. The force by whcih planets draws objects towards its center
- 3. Scale to measure the intensity of Earthquake
- 7. Part of Earth which consists of Air
- 9. Animal that Breathe Through Body