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Planets and More
Planets, Comets, Meteors, Asteroids
Question | Answer |
---|---|
like a large dirty snowball | comet |
rock made of similar material that formed the planets | asteroid |
made of dust and rock that burn up in the Earth's atmosphere | meteor |
smaller pieces of rock broken from this become meteoroids | comet |
most are located between orbits of Mars and Jupiter | asteroids (Asteroid Belt) |
often has a tail | comet |
a "falling star" | meteor |
orbits the sun | planets, asteroids, comets |
sequence that describes a space rock that falls to Earth's surface | meteoroid, meteor, meteorite |
order of the planets starting closest to the sun | Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune |
number of planets | 8 |
direction that planets, sun, stars, and moon appear to move | They appear to rise in the East and set in the West. |
what the inner planets are made of | mostly rock |
what the outer planets are made of | mostly gas |
Are the inner planets or the outer planets more dense? | The inner planets are more dense because they are more tightly packed (solid). |
Earth is very different from the other planets because it has the most ____________. | liquid water |
Which planets are smaller than the Earth? | Mercury, Venus, Mars |
inner planets | Mercury, Venus, Earth, Mars |
outer planets | Jupiter, Saturn, Uranus, Neptune |
largest planet and a gas giant | Jupiter |
planet that is almost the same size as Earth (even though this planet is a little bit smaller than Earth) | Venus |
a space rock that is still in space | meteoroid |
a meteoroid that burns up in the earth's atmosphere | meteor |
a meteoroid that doesn't burn up in the earth's atmosphere and ends up hitting the earth's surface | meteorite |