1. In the space next to each statement, write either "T" for TRUE, or "F" for FALSE. (2 pt. ea.)
T: Comets provide the fuel for meteor showers.
T: No stones from meteor showers have been recovered.
F: "Finds" are stones recovered after following meteors' trails.
T: Most planetary rings are within the tidal
stability limit.
F: Pluto is only visible with telescopes in space.
F: The rings of Uranus were discovered by a satellite.
2. Circle the term in parentheses that makes the sentence correct. (2 pt. ea.)
A. Most meteors have masses of
(hundreds of kg/about a gram).
A: about a gram
B. A comet's (dust/ion) tail points away from the Sun.
A: ion
C. The source of most comets is the (Oort Cloud/Kuiper Belt). A: Oort Cloud
D. The (capture/breakup) hypothesis is one
theory of ring formation.
A: breakup