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chpt8 lesson3
vocab+facts
Question | Answer |
---|---|
planet | a large body that orbits a star |
moon | an object that orbits a planet |
solar system | consists of a star, such as the sun, as well as planets, moons, and other bodies traveling around it |
inertia | the 2nd property that keeps planets in orbit |
asteroids | rocky or metallic objects that orbit the sun |
comet | a ball of ice and rock that orbits the sun |
meteoroids | small, rocky, or metallic objects that orbit the sun both inner and outer regions of the solar system |
meteor | a meateoroid that enters earth's atmosphere |
meteorite | a meteoroid that strikes earth's surface |
name the planets (start from closest to the sun) | mercury, venus, earth, mars, jupiter, saturn, uranus, neptune |
which planets are the inner planets? | mercury, venus, earth, mars |
which planets are the outer planets? | jupiter, saturn, uranus, neptune |
what is pluto classified as? | a dwarf planet |
which planet is most similar to earth? | venus |
what do astronomers call space rocks that hit earth's surface? | meteorites |
what are other objects in the solar system? | asteroid belt, dwarf planets, comets, the kuiper belt, the oort cloud, and meteorids |