Pure Substances and Mixtures · Physical Science

The Particle Theory of Matter

Exploring the behavior of particles in solids, liquids, and gases.

Key Questions

  1. 1What makes a solid hold its shape while a liquid flows to fit its container?
  2. 2How do we know particles are moving even in objects that look completely still?
  3. 3What would happen to the volume of a gas if we increased the speed of its particles?

Ontario Curriculum Expectations

ON: Pure Substances and Mixtures - Grade 7ON: Matter and Energy - Grade 7
Grade: Grade 7
Subject: Science
Unit: Pure Substances and Mixtures
Period: Physical Science

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