ch 16 vocab
| Description: | 5ATHENA ch 16 vocab Scott Foresman 2008 |
| Category: | Science |
| Created by: | bgagnon on 2008-05-02 |
| Stack ID: | 132516 |
| terms | definitions |
| light-year | the distance light travels in one year |
| nebula | a cloud of gas and dust in which new stars form |
| supernova | a gigantic explosion that occurs near the end of the life of some stars |
| black hole | a point in space that has such a strong force of gravity that nothing within a certain distance of it can escape |
| galaxy | a huge system of stars, dust, and gas held together by gravity |
| constellation | a group of stars that forms a pattern |
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