Across
- 2. What type of energy comes from the sun
- 4. Top organic layer of soil
- 8. Renewable energy from plant and animal materials
- 12. Layer made of clay and minerals
- 13. Layer where plants grow
- 19. Energy from heat inside the earth
- 21. Fossil fuel used for cooking and heating
- 24. Moving air that creates renewable energy
- 25. Resources that take millions of years to form
- 26. Orderly atomic arrangement in minerals
- 27. Resources that can be replaced quickly
- 28. Smallest soil particle type
Down
- 1. Metal used as fuel in nuclear plants
- 3. Ancient organic materials used for energy
- 4. Power generated by flowing water
- 5. Rocks formed from cooled magma/lava
- 6. Solid fossil fuel formed from dead plants
- 7. Rocks changed by heat and pressure
- 9. Rocks formed by layers of sediment
- 10. Naturally occurring inorganic solid
- 11. Color of mineral when powdered
- 14. Liquid fossil fuel used for transportation
- 15. Solid rock layer beneath soil
- 16. How a mineral reflects light
- 17. Property measured on Mohs scale
- 18. Energy from atomic reactions
- 20. Ocean energy from waves and currents
- 22. Largest soil particle type
- 23. Best soil for growing plants