Across
- 2. A resource that forms much slower than the rate at which it is consumed.
- 5. The process of recovering valuable or useful materials and reusing them.
- 7. Process that changes the composition of rock when magma comes in contact with rock.
- 10. A natural resource that can be replace at the same rate at which it is consumed.
- 12. The nuclear process by which the nucleus of a heavy atom splits into two or more fragments and releases energy.
- 13. Fossil fuels are made of this type of carbon.
- 16. This process helps reduce the environmental effect of mining.
- 17. A deposit that contains a concentration of valuable heavy minerals at the bottom of bodies of water.
- 18. This element is used for nuclear fission.
Down
- 1. The preservation and wise use of natural resources.
- 3. A nonmetal material that can be used as jewelry or an ornament when cut & polished.
- 4. Energy Produced by heat within Earth.
- 6. Mineral deposits that can be mined profitably.
- 8. The nuclear process by which nuclei of small atoms combine to form new nuclei and releasing energy.
- 9. Electrical energy produced by the flow of water.
- 11. A deposit of many mineral ores.
- 12. A nonrenewable energy source formed from the remains of long dead organisms.
- 14. Plant material, manure or any other organic matter used as an energy source.
- 15. Energy received by Earth from the sun in the form of radiation.