big bang

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Across
  1. 4. The galaxy that contains our solar system. 2words
  2. 6. Scientists who study stars, planets, and the universe.
  3. 7. A light gas that is the second most common atom in the universe.
  4. 8. The ability to do work or cause change; it can be found in different forms.
  5. 9. A Prize given to people who make significant contributions to science and peace.
Down
  1. 1. A massive system of stars, gas, and dust held together by gravity
  2. 2. The simplest and most abundant atom in the universe.
  3. 3. The vast space that includes everything, like stars, planets, and galaxies.
  4. 4. Anything that has mass and takes up space.
  5. 5. The tiny building blocks that make up all matter.