Agenda 23: Sun, Stars and Galaxies Vocabulary Crossword Puzzle

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Across
  1. 3. Everything that exists – planets, stars, dust, gases and energy.
  2. 7. The sun’s atmosphere
  3. 11. A dark spot on the photosphere of the sun
  4. 12. Brightness of stars
  5. 13. are clouds of gas and dust in which stars form.
  6. 14. is a group of galaxies
Down
  1. 1. The distance light travels in one Earth year; about 9.5 trillion km.
  2. 2. When hydrogen particles fuse, or join together, to produce helium. Every time this happens, the sun releases energy as light and heat.
  3. 4. A band of stars that includes most stars of average color, size, magnitude, and temperature.
  4. 5. The visible surface of the sun
  5. 6. A group of stars, gas, and dust
  6. 8. A brief burst of energy from the sun’s photosphere
  7. 9. name of Earth's galaxy
  8. 10. A fast moving stream of particles thrown into space by solar flares