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  • Created by: natalyaa
  • Created on: 07-05-14 15:50


moving particles

  • scents are substances that you smell. A scents consists of molecules of gases spread out into the air.
  • Molecules naturally spread out from a place where there are a lot of them into a place where there are fewer. They spread from a high concentration to a lower concentration. This is diffusion.
  • Particles are always moving. Any particles that can move


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