Solve these clues to fill the grid.
- A relatively small granular particle of a substance (plural)
- 6 Across
- Contact by fitting together
- 7 Across
- Slippery liquid used for cooking and fuel
- 9 Across
- Solid homogeneous inorganic substances occurring in nature having a definite chemical composition
- 10 Across
- The phenomenon of sediment or gravel accumulating (plural)
- 14 Across
- Worn down or altered by exposure to natural conditions.
- 15 Across
- Fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period
- 16 Across
- Matter that has been deposited by some natural process
- 1 Down
- The wearing down of rock particles by friction due to water or wind or ice
- 2 Down
- Condition in which the earth's surface is worn away by the action of water and wind
- 3 Down
- A fossil fuel in the ___ state
- 4 Down
- To move while supporting, either in a vehicle or in one's hands or on one's body
- 5 Down
- A substance consisting of two or more substances mixed together (plural)
- 8 Down
- A binding agreement between two or more persons that is enforceable by law
- 11 Down
- The physical composition of something
- 12 Down
- The remains of a plant or animal that existed in a past geological age and that has been excavated (plural)
- 13 Down