# Sound Travels Through Materials

Recognise that vibrations from sounds travel through a medium (solid, liquid, or gas) to the ear

Builds on: Vibrations & Sound (hard, https://ai.page/c/vibrations-and-sound/en.md), Light & Sound Vocabulary (hard, https://ai.page/c/light-and-sound-vocabulary/en.md)

Concept id: sound-travels-through-materials. 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.