Across
- 4. Stars exist because of the equal balance between the outward explosive force of nuclear fusion and the inward pull of ____________.
- 6. Term used to measure the degree of orbital flattening (measure of how elliptical an orbit is)
- 8. The term that refers to a small rocky/metal body that falls from space and strikes the Earth's surface
- 9. Another term used to classify for gas giant planet
- 10. Term referring to object's motion around another object (example Moon travelling around the Earth)
- 11. Cloud of gas and dust that stars are born, and are created by the deaths of dead stars
- 12. Term that measures the amount of matter crammed within a specific volume of space
- 13. Nuclear process that occurs at the center of star
- 16. Term referring to an object's spin around its own axis, responsible for the "day" and "night"
- 17. The term used to define the central point in which an object orbits around (within a elliptical orbit)
Down
- 1. Term used to classify planets that are made of Rock and metal
- 2. The specific region around a star where a rocky planet's surface temperature is "just right" to maintain liquid water
- 3. Death of star -- occurs in the form of a massive explosion
- 5. Planet with the most elliptical orbit
- 7. Specific point within a object's orbit where it is closest to the Sun
- 14. Last element massive stars make before they go supernova
- 15. The only planet with a day longer than its year