Unit 3 Science Vocabulary

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Across
  1. 2. Space and all the matter and energy in it
  2. 4. A measure of how bright a star would be if it were seen from a standard disntance
  3. 6. A star that has collapsed under gravity
  4. 10. All of the frequencies or wavelengths of electromagnetic radiation
  5. 12. The distance that light travels in a year; about 9.46 trillion kilometers
Down
  1. 1. Hertzsprung-Rusell diagram a graph that shows the relationship between A stars surface, temputure
  2. 3. The actual brightness of a star as seem from earth
  3. 5. A gigantic exostion in wich a massive star collapse and throws its outer layer into space
  4. 7. A small hot dim
  5. 8. A large cloud of gas and dust in insterastellar space; a region where stars are born
  6. 9. The actual brightness of an object such as star
  7. 11. A collection of stars, dust and gas bound together by gravity