SME
Grade 5 Science · Physical Science
Modeling matter: particles too small to see
See how particles too small to see are arranged in solids, liquids and gases.
Explore
The particles are packed tight and only wiggle.
A solid keeps its own shape.
Assumptions
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Everything is made of particles far too small to see, even with a microscope.
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The particles keep moving. Warmer means faster.
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Tap a scene to see how the particles are arranged.
Topic check
See what you know: 5 questions on this topic
New questions each time. Pass to mark it complete.