Across
- 2. a chemical compound made of iron and oxygen
- 6. a colorless, toxic gas with a sharp, suffocating odor that's highly irritating
- 10. things that are of the land
- 13. the force of attraction between two objects with mass
Down
- 1. a state in which a fluid or solid at rest is balanced by a pressure-gradient force and external forces, such as gravity
- 3. a collection of myths, especially one belonging to a particular religious or cultural tradition.
- 4. a colorless, odorless, non-flammable gas that is a natural part of the Earth's atmosphere
- 5. scattered pieces of waste or remains.
- 7. a silvery-white, malleable, and ductile form of iron that is bonded to electrons and can be magnetized
- 8. rocks that are composed of the remains of once-living organisms
- 9. any object that orbits a larger object
- 11. amorphous ice
- 12. a donut-shaped region of space beyond Neptune that contains icy objects, dwarf planets, dust, and comets