Match the words in the left-hand column to the appropriate blank in the sentences in the right-hand column. Use each word only once. Hints help reset comma plasma tail Oort Cloud Kuiper Belt meteor shower nucleus.
1. About a trillion comets are thought to be located far, far beyond Pluto in the Oort Cloud.
2. The bright spherical part of a comet observed when it is close to the sun is the coma.
3. A comet's tail stretches directly away from the sun.
4. A comet's nucleus is the frozen portion of a comet.
5. Particles ejected from a comet can cause a meteor shower on Earth.
6. The Kuiper Belt extends from about beyond the orbit of Neptune to about twice the distance of Neptune from the sun.