Across
- 6. The — have rocky planes, and are very dense. All have an iron core
- 7. The sphere that encircles the solar system to ~50,000 AU is called the —. Is a great reservoir of comets, comets come to the inner solar system on occasion
- 9. — were asteroid-like bodies that formed planets and moons through continuous collisions. Grew by accretion
- 10. During a lunar eclipse, it’s not too difficult to see a complete shadow casted on the moon because the — is way larger than in a solar eclipse
Down
- 1. Part of the nebular theory. A large cloud of dust and gas that was expelled by previous stars, this was a —
- 2. The model of space that was widely accepted by ancient Greeks was the
- 3. outer objects from Pluto and its orbit to ~100AU are in the —. Most of these objects lie in a donut shaped region
- 4. The — have small cores of metal and rock, the rest of the planet is liquid hydrogen and helium. Each have one or more rings and have many moons
- 5. In the 1500s, the — model was revived when people realized that it would be easier to understand
- 8. During a solar eclipse, it’s way more common to view a partial rather than a whole shadow casted on earth due to the — ‘s size compared to the view point of a complete eclipse