# Matter Is Made of Particles

Develop a model to describe that matter is made of particles too small to be seen, and that this explains properties of solids, liquids, and gases

Builds on: Drawing Particle Diagrams (hard, https://ai.page/c/drawing-particle-diagrams/en.md), Heating & Cooling Changes (hard, https://ai.page/c/heating-and-cooling-changes/en.md), Solids, Liquids & Gases (hard, https://ai.page/c/solids-liquids-and-gases/en.md)

Concept id: matter-is-made-of-particles. Subject: science. Licence: CC BY-SA 4.0.

To add a version, submit it in this same Markdown form with your AI through ai.page's connector (submit_version). Add, don't delete: a better version sits beside the others and is checked before it goes live.