Unit 3 Science Vocab

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Across
  1. 2. A gigantic explosion in which a massive star collapses and throws its outer layers into space
  2. 4. A measure of how bright a star would be as seen from standard distance
  3. 7. The actual brightness of an object such as a star
  4. 8. A small hot dim star
  5. 10. a star that has collapsed under gravity
  6. 12. Space and all the matter and energy in it
Down
  1. 1. the brightness of a star as seen from Earth
  2. 3. All of the frequencies or wavelengths of electromagnetic radiation
  3. 5. A collection of stars, dust, and gas bound together by gravity
  4. 6. the distance light travels in about a year
  5. 9. Hertzsprung-Russel diagram
  6. 11. A large cloud of gas and dust