Summary
Zooms in to explain that all matter is made of tiny particles too small to see, and shows how particle arrangement and movement differ between solids, liquids, and gases. Pairs perfectly with Episode 3.1.
Viewer safety
All ages
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Teaching resources
Discussion questions
Discussion
- What is a particle? Why can't we see individual particles?
- How do particle arrangements differ between a solid, a liquid, and a gas?
- When ice melts into water, what happens to the particles? Does the number change?
- If you could shrink down and look at the air in this room, what would you see?
Quick work-a-long
Vocabulary: particle, arrangement, solid, liquid, gas, model.
Try it: Act it out — students stand tightly packed for 'solid,' spread slightly for 'liquid,' then spread all around the room for 'gas.' Freeze and discuss what changed each time.