Question | Answer |
Know all info on the handout titled "Astronomy lesson 8 vocabulary review" sheet that we did in class. | |
Sometimes a comet has two tails---a blue one and a yellow one. What is the difference? | Blue tail is the steam burning off the nucleus and yellow tail is made out of dust particles. |
Name the three famous comets that are named in your book and that we discussed in class. | Halley's comet, Hale-Bopp comet, and Shoemaker-Levy comet |
Where on Earth have people found the ground covered with meteorites---over 10,000 of them? | Antarctica |
What do astronomers often call comets? | "dirty snowballs" |
The name comet comes from the Greek word kometes which means ________ ____ _________. | Head of hair |
Some people have come up with an idea that there might have once been a planet between Mars and Jupiter that blew up and left what is now the asteroid belt. What is this theory called? | Exploded Planet Hypothesis |
Name the inner planets (these are the ones between the asteroid belt and the sun---these are also terrestrial planets). | Mercury, Venus, Earth and Mars |
Name the outer planets (these are beyond the asteroid belt and are mostly gaseous). | Jupiter, Saturn, Uranus, Neptune and Pluto |
Sometimes a meteoroid hits Earth's atmosphere and completely burns up. People often call these shooting stars but actually they are what? | meteors |