Science Weekly - wk#4a

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Across
  1. 2. another name for the North Star
  2. 6. a proposed explanation for an event
  3. 8. our home galaxy containing our solar system, along with many other stars and planets
  4. 9. the process in a star's core that combines atoms and releases energy allowing the star to shine bright in the night sky
  5. 10. a group of stars that form a pattern
  6. 11. scientists who study space
Down
  1. 1. a constellation made up of seven stars in the shape of a bowl with a handle
  2. 3. distance that light can travel in one year
  3. 4. the invisible light that carries more energy than visible light and can cause a sunburn
  4. 5. a large group of stars, planets, gas, and dust stuck together by gravity
  5. 7. the sun and all the planets, moons, asteroids, and comets that orbit around the sun due to its strong gravity