Across
- 3. Type of synthetic material that is usually made from petroleum
- 6. A naturally-occurring inorganic solid with a definite chemical composition and an ordered atomic arrangement
- 8. Movement beneath Earth's surface that has led to the creation of mountains
- 9. The type of mining that involves digging shafts into the ground
- 11. The process of converting electromagnetic energy (light) into chemical energy to create complex, organic molecules
- 12. The type of natural resource fossil fuels are
Down
- 1. The gas animals breathe out and producers take in
- 2. The simplest type of hydrocarbon; what natural gas is mostly made of
- 4. A pure substance determined by the number of protons in its nucleus; carbon, gold, and praseodymium are examples
- 5. A rock that can be profitably mined
- 7. The element the minerals graphite and diamond are made of
- 10. Coal, Natural Gas, and Oil are examples
- 11. Partially-decayed vegetation; coal was once this