What is sound?
- Vibrations that travel through air or another medium and can be heard when they reach a person's or animal's ear.
- Light waves that travel through the air and can be seen when they reach a person’s eye.
- Heat energy that travels through the air and can be felt by a person.
Write down any key words you can think of from the topic of sound.
Sound is a vibration that travels through air, water, or any other medium. We hear sound when the vibration is strong enough to be detected by our ears. Sound is produced by vibrations from musical instruments, voices, or other sources.
Sound: What Is It?
Frequency: The number of times a sound wave vibrates per second. Measured in hertz (Hz) Amplitude: The size of a sound wave. Measured in decibels (dB) Wavelength: The distance between two consecutive sound waves. Measured in meters (m)
Can you name the parts of the ear?
Draw your best drawing of the diagram of the ear!
Why can't sound travel in a vacuum?
What is the function of the cochlea?
What unit is used to measure loudness?
- Decibel (dB)
- Hertz (Hz)
- Watt (W)
Which animal has better hearing than humans?
Draw a sound wave of a noise that is loud and high pitched!