A lot of different objects, people, animals and things make sounds. People make sounds by talking, animals make sounds when they bark, hiss or meow, and even things make sounds too. Ask your students if they can mention some other objects that they know produce sounds. Then ask them if they know what causes these sounds to be made; for example, when a drum is hit with a stick. Now, help them identify the cause and effect of vibrations in this fun worksheet and check the correct answers.