You will learn something about sound waves. It will be about sound and frequency. You'll find out what the pitch of the sound depends on. You will know different sound sources and the speed of sound in steel and air. We will do a lot of interesting experiences that will help us understand what acoustic waves are. We will solve one of the typical tasks from this topic. You will learn what the human ear is made of. A lot of interesting information that you can use at school, at home, at the test. For better reception of the film, I recommend putting on headphones.