Unit 3 science vocabulary

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Across
  1. 5. space and all the matter and energy in it
  2. 7. Hertzsprung-Russelldiagramagraphthatshowstherelationshipbetweenastar'ssurfacetemperatureandabsolutemagnitude
  3. 10. allofthefrequenciesorwavelengthsofeletromagnticradiation
  4. 12. ameasureofhowbrightastarwouldbeifitwereseenfromastandarddistance
Down
  1. 1. thebrightnessofastarasseemfromEarth
  2. 2. thedistancethatlighttravelsinayear;about9.46trillionkilomaters
  3. 3. theactutualbrightnessofanobjectsuchasastar
  4. 4. astarthathascollapsedundergravitytothepointthattheelectronsandprotonshavesmashedtogethertoformnuetrons
  5. 6. acollectionofstarsdustandgasboundtogetherbygravit
  6. 8. asmallhotdimstarthatistheleftovercenterofanoldsun
  7. 9. alargecloudofgasanddustininstellarspae;aregionwherestarsareborn
  8. 11. agiganticexplosioninwhichamassivestarcollapsesandthrowsitsouterlayersintospace