Energy: Sound

Lesson Plan - Get It!

Audio:

Sound is all around you, whether it comes from cars passing by on the street nearby or is the sound of a clock ticking.

• Did you know sound is a form of energy?

Energy is something that does work or creates something else. You named some sounds you could hear.

• Are the sounds you hear now loud or soft?

Sound travels in waves.

The sound starts with movement. The movement causes vibrations. Vibrations are quick movements that are hard to see.

These vibrations cause the sound to occur. The vibration causes sound waves that travel to your ears.

Something that is low-pitched has longer waves than something that is high-pitched.

A whistle makes a high-pitched sound, and a large drum makes a low-pitched sound.

• Can you think of two things that make high-pitched sounds?
• Can you think of two things that make low-pitched sounds?

Watch the video below to learn more about sound.

Now, try to answer these questions.

• How is sound made?
• What is used to hear sound?
• What happens to the rubber band when she pulls on it?
• What happens when she stops the rubber band from moving?

Sound is made when things vibrate. The ears are used to hear sound.

The rubber band vibrated and made a sound when she pulled on it. When she stopped it from moving, it stopped vibrating and making sound.

Move on to the Got It? section to play a sound game!