Sound waves – A sound wave is a vibration that travels through a solid, liquid or gas such as the air or water. Ultrasound – Ultrasonic sound that makes waves which vibrate very quickly.

Mind-reading software developed in the Netherlands can decipher the sounds being spoken to a person, and even who is saying them, from scans of the listener’s brain. To train the software ...

Learn how sounds are made with these interactive learning resources for KS2 Science students aged 7-11 from BBC Bitesize.