HW#17: pg. 157-158 Rev 4 – 6; CST 4 – 6
Rev 4 – 6
4. Name three important differences between the terrestrial planets and the jovian planets.
5. Why are asteroids and meteoroids important to planetary scientists?
6. Comets generally vaporize upon striking Earth's atmosphere. How, then, do we know their composition?
CST 4 – 6
4. A solar system object of rocky composition and comparable in size to a small city is most likely (a) a meteoroid; (b) a comet; (c) an asteroid; (d) a planet.
5. The asteroids are mostly (a) found between Mars and Jupiter; (b) just like other planets, only younger; (c) just like other planets, only smaller; (d) found at the very edge of our solar system.
6. In the leading theory of solar system formation, the planets (a) were ejected from the Sun following a close encounter with another star; (b) formed from the same flattened, swirling gas cloud that formed the Sun; (c) are much younger than the Sun; (d) are much older than the Sun.