Matter

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Across
  1. 3. Study of substances and their reactions.
  2. 5. Fixed shape, tightly packed particles.
  3. 6. Capacity to do work, related to matter.
  4. 8. Basic unit of an element.
  5. 10. Takes container's shape, particles loosely packed.
Down
  1. 1. Anything taking up space and having mass.
  2. 2. Study of matter, energy, and forces.
  3. 4. Method to test hypotheses about matter.
  4. 7. Particles spread out, fills space.
  5. 9. Two or more atoms chemically bonded.