# Friction & Surfaces

Compare how things move on different surfaces, noticing that some surfaces create more friction than others

Builds on: Pushes & Pulls (hard, https://ai.page/c/pushes-and-pulls/en.md), Forces Vocabulary (hard, https://ai.page/c/forces-vocabulary/en.md)

Concept id: friction-and-surfaces. Subject: science. Licence: CC BY-SA 4.0.

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