Exit presenter|Particles of Matter: From Macro to Subatomic
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Hook

Why does sugar disappear in tea?

  • Observe: solid sugar becomes a sweet liquid — the glass still weighs more.
  • Question: Is the sugar still there? What changed?
  • Today: connect visible changes to the particle model of matter.
Particles have space between them and move — heating increases motion
Particle model: particles in a container with motion