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chptr8 lesson4
vocab+facts
| Question | Answer |
|---|---|
| star | a large, hot ball of gases, held together by gravity, that gives off its own light |
| constellation | a group of stars that appear to form a pattern |
| parallax | the apparent shift in an object's postition when viewed from 2locations |
| light-year | the distance light travels in one year |
| nebula | a huge cloud of gas and dust in space |
| supernova | an exploded star |
| black hole | an object whose gravity is so strong that even light cannot escape it |
| ____ is a winter constellation in the northern hemisphere and can be seen at night during winter months | orion |
| in may _____ disappears from the night sky in the northern hemisphere | orion |
| the ______ _______ can help you with directions | North star |
| the closer a _____ is to earth the greater the _______ | star; parallax |
| stars have ______ that can be studied and compared | properties |
| ______ develop in different ways depending on their masses. | Stars |
| The ____ is an average-sized star with properties common to most stars. | Sun |
| Which object has such a strong gravity that even light cannot escape it? | a black whole |