4.1-4.2 Crossword Puzzle

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Across
  1. 1. Galaxies with spiral arms attached to a straight section at the center are called _______ spirals.
  2. 4. galaxy shape that looks like a giant pinwheel spinning through space
  3. 6. the study of the stars, planets, and all other heavenly bodies
  4. 7. the galaxy in which we live
  5. 8. a scientist who studies outer space and tries to understand stars, planets, and all other heavenly bodies
  6. 11. a large cloud of gas and dust floating in space
  7. 12. the force that resists motion
  8. 15. the largest galaxy in the Local Group; visible with the naked eye from Earth on a dark night
  9. 16. an area containing no air or any other matter
  10. 17. One of three galaxies closest to the Milky Way is the __________ Dwarf galaxy.
Down
  1. 2. galaxies that resemble eggs or footballs
  2. 3. the layers of air that surround and protect the surface of the earth
  3. 5. a cluster of about 40 galaxies that includes our galaxy
  4. 9. a space suit provides ________ and protects from extremes of temperatures
  5. 10. Two of three galaxies closest to the Milky Way are the Large and Small _________ Clouds.
  6. 13. galaxies composed of stars clumped together in no definite shape
  7. 14. a star system containing from millions to billions of stars