Natural Resources
Across
- 3. rock formed from layers of sand, soil, clay, gravel, and other sediment that built up in one location over time
- 5. a renewable fuel made from the sugars found in plant matter such as corn or sugarcane
- 7. heat transfer in fluids where warmer, less-dense fluid rises, allowing cooler, denser fluid to take its place; causes a tumbling motion in the fluid
- 9. has tiny holes that allow substances to absorb
- 12. the transport of sediment by wind, water, or gravity
- 13. anything that is not living and never was living
- 14. rock formed in chemical reactions where one type of rock is changed by pressure or heat into a new type of rock with different properties
- 15. nonrenewable energy sources that formed millions of years ago from plant and animal matter
Down
- 1. the breakdown of rock into smaller pieces from exposure to wind, water, gravity, changes in temperature, and/or biological forces
- 2. the ease with which substances move through a material
- 4. the processes that form, break down, and re-form rock from one category to another
- 6. a chemical reaction in animal or plant matter brought about by microscopic yeasts, bacteria, and molds
- 8. a resource that cannot be replenished in a short amount of time
- 10. anything that is living or was once living
- 11. rock formed when hot liquid rock (either lava or magma) cools into a solid