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Unit 3 Lesson 6
Vocab
Word | Definition |
---|---|
Dwarf Planet | A celestial body that orbits the sun, is round because of its own gravity, but has not cleared it orbital path |
Kulper Belt | A region of the solar system that is just beyond the orbit of Neptune and that contains small bodies of ice |
Kulper Belt Object | One of the hundreds or thousands of minor planet-sized objects that orbit the sun in a flat belt beyond Neptune's orbit |
Comet | A small body that gives off gas and dust an elliptical orbit around the sun |
Oort Cloud | A spherical region the surrounds the solar halfway to the nearest star, and that contains billions of comets |
Asteroid | A small, rocky object that orbits the sun |
Meteoroid | A relatively small, rocky body that travels through space |
Meteor | A bright streak of light that results when a meteoroid burns up in Earth's atmosphere |
Meteorite | A meteoroid that reaches Earth's surface without burning up completely |