Across
- 7. A flammable black hard rock used as a solid fuel
- 8. You will never see it,but die without it.
- 12. Fossil fuel in the form of gas.
- 13. Resources that can be replenished in the same or less time as it is used.
- 14. The process of extracting metal from ore.
Down
- 1. An organic matter that can be used as an energy source.
- 2. Fossil fuel in the form of liquid.
- 3. An energy formed by ancient plants and animals.
- 4. Smallest soil particles.
- 5. Heat energy stored inside the Earth.
- 6. The energy earth receives from the sun.
- 9. What grows when it eats but dies when it drinks.
- 10. A ability to do work or bring about a change.
- 11. In humble amounts i give,in multitudes i am death.