Across
- 3. binding particles together
- 4. rock type made from layers of compressed sediments
- 6. remains of dead plants and animals
- 7. the type of gas taken from the Earth as a fossil fuel
Down
- 1. the action of force by one object against another
- 2. small particles of rock
- 3. solid fossil fuel
- 5. pressing together tightly
- 6. liquid fossil fuel