Puzzle #38

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Across
  1. 2. - the branch of physics that deals with heat and temperature
  2. 6. - a substance that flows, such as a liquid or gas
  3. 8. - the scientific study of the universe and its objects
  4. 9. - the branch of physics that deals with the motion of objects and the forces acting upon them
  5. 10. - relating to fluids at rest or in uniform motion
  6. 11. - the branch of astronomy that deals with the physical properties and interactions of celestial objects
Down
  1. 1. - the theory that space, time, and gravity are intertwined and relative to the observer
  2. 3. - the branch of physics that deals with the motion of objects and the forces that cause them to move
  3. 4. - the study of the origin, evolution, and structure of the universe
  4. 5. - the branch of mechanics that deals with the motion of objects and the forces that cause them to move
  5. 7. - relating to the behavior of matter and energy on a subatomic scale