Across
- 4. The thin and solid outermost layer of the Earth above the mantle
- 6. The layer of hot, solid material between Earth's crust and core.
- 7. A dense sphere of solid iron and nickel at the center of Earth
- 9. A description of surface features of land.
- 11. A substance that releases high energy as it breaks down
- 13. The makeup of something (often referring to chemical elements within object)
- 16. the difference in elevation between the highest and lowest parts of an area
- 17. naturally occurring background radiation from outer space
Down
- 1. Region of space affected by Earth's magnetic field.
- 2. The area of magnetic force around a magnet
- 3. A layer of molten iron and nickel that surrounds the inner core of Earth
- 5. A rigid layer made up of the uppermost part of the mantle and the crust.
- 8. The movement of matter due to differences in density
- 10. Energy coming from the sun in charged particles
- 12. The soft layer of the mantle on which the lithosphere floats.
- 14. The height of land above sea level
- 15. The central part of the earth below the mantle
- 18. How compact the mass of an object is