Space

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Across
  1. 4. basic units of matter that every solid, liquid, gas, and plasma is composed of
  2. 5. star a system of two stars that revolve around each other or both revolve around a common centre
  3. 6. the area of gas and air that envelops out earth
  4. 7. matter particles thought to exist in space that don’t absorb, reflect, or emit light and thus can’t be observed
  5. 8. bang the main theory explaining how the universe started. It states that 13.8 billion years ago, space expanded quickly to form the atoms would form stars and galaxies
Down
  1. 1. star sailor
  2. 2. a scientist that studies the universe
  3. 3. a small icy object that orbits the sun and has a long “tail” of gas
  4. 4. belt the region between Jupiter and mars that contains the largest population of asteroids in our solar system
  5. 5. dwarf a star that’s exhausted from its own supply of carbon and burnt out