Science Crossword Puzzle

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Across
  1. 6. emit energies of millions, billions, or even trillions of electron volts
  2. 7. Star: The enormous density of a ______ ___ means a teaspoon of neutron star material would weigh 10 million tons
  3. 9. Dwarf: typically have a radius just . 01 times that of our own sun
  4. 10. Magnitude: ________ _________ is a measurement used to describe the brightness of stars and other astronomical objects in space. Read on to find out all you need to know about the star _________ scale.
  5. 13. Galaxy: a dense central bulge lies at the centre of a rotating disc, which features a spiral structure that originates at the bulge.
  6. 14. Magnitude: The ___________ ___________, m, of a star is the magnitude it has as seen by an observer on Earth.
  7. 16. It was the first state to write and adopt a constitution in 1780
  8. 17. is a very young star that is still gathering mass from its parent molecular cloud
  9. 20. A ________ shower occurs when the Earth passes through the trail of debris left by a comet or
  10. 21. Spectrum: A trough is the lowest point of a wave and a crest is the highest point.
  11. 22. _______ helps power 28 U.S. states
  12. 24. due to a change in viewpoint occurring due to the motion of the observer, of the observed, or both
Down
  1. 1. _______also called the Dog Star, the brightest star in the night sky and one of the closest to the Earth.
  2. 2. The largest constellation by area is Hydra which is 3.16% of the sky.
  3. 3. In the whole universe, black holes have the biggest ________ pull
  4. 4. a property of matter by which it remains at rest or in unchanging motion unless acted on by some external force
  5. 5. they were probably born in supernova explosions
  6. 8. Giant: A ___ ______ is a dying star in the final stages of stellar evolution
  7. 11. Star: 4 out of 5 stars are multiples
  8. 12. Diagram: By far the most prominent feature is the main sequence
  9. 13. _________ are so powerful they create new atomic nuclei
  10. 15. They can create a big impact. _________ collide with planets
  11. 18. Nebula: The brightest star of the constellation Taurus
  12. 19. _______ are in orbit around the Sun as are our planets
  13. 23. Hole: is a place in space where gravity pulls so much that even light can not get out