7th Grade Science Final 2022
Across
- 3. The process by which new oceanic crust forms along a mid-ocean ridge and older oceanic crust moves away from the ridge.
- 6. Theory that Earth's surface is broken into large, rigid pieces that move with respect to each other.
- 7. Resources that can be replaced by natural processes in a relatively short amount of time.
- 13. A rapid, downhill movement of soil, loose rocks, and boulders.
- 14. The process that occurs when one tectonic plate moves under another tectonic plate.
- 15. Energy from the sun.
- 16. Electricity produced by flowing water.
- 17. Deep, underwater troughs created by an oceanic plate subducting under another plate at a convergent plate boundary.
- 19. A solid that is naturally occurring, inorganic, and has a crystal structure and definite chemical composition.
- 21. Things that have all the characteristics of life.
- 22. A group of organisms that have similar traits and are able to produce fertile offspring.
- 24. A deposit of minerals that is large enough to be mined for a profit.
- 25. The way a mineral reflects or absorbs light at its surface.
- 26. Magma that erupts onto Earth's surface.
- 27. The color of a mineral's powder.
Down
- 1. The laying down or settling of eroded material.
- 2. Molten rock beneath Earth's surface.
- 4. Energy released from atomic reactions.
- 5. Name given to a supercontinent that began to break apart approximately 290 million years ago.
- 8. The movement of Earth's continent's over time.
- 9. A pile of windblown sand.
- 10. Energy produced by burning organic matter, such as wood, food scraps, and alcohol.
- 11. Resources that are used faster than they can be replaced by natural processes.
- 12. The moving of weathered material, or sediment, from one location to another.
- 18. A large mass of ice, formed by snow accumulation on land, that moves slowly across Earth's surface.
- 20. The series of processes that change one type of rock into another type of rock.
- 23. Thermal energy from Earth's interior