| 1-1 of 1Flashcard sets with a 'supernova' term meaning 'explosion caused when a massive star dies and collapses; rare, short-lived phenomenon that throws out vast amounts of energy into space; some so bright that they could be seen even in the middle of the day' | |||
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| # | Title | Terms | Date |
| 1 | Middle School Science questionsby aquarius16 | 763 terms | March 21, 2009 |