Sound: Pitch and Volume (Part 2)

What You'll Learn

Sound waves have properties including amplitude (loudness), frequency (pitch), and wavelength. Higher frequency means higher pitch. Greater amplitude means louder sound.

Key Words

criteria
iteration
wavelength

Materials Needed

tape
scissors
straws

Safety First

Adult supervision recommended.
Do not taste any materials.
Wear safety goggles when mixing liquids.

Steps

Step 1 — Read

Read and learn: Sound waves have properties including amplitude (loudness), frequency (pitch), and wavelength. Higher frequency means higher pitch. Greater amplitude means louder sound.

Step 2 — Do

Repeat the experiment two more times for accuracy.

Step 3 — Observe

Observe what happens and describe it in detail.

Step 4 — Record

Record your observations in your science journal.

Check Your Understanding

Question 1

1 of 3

Can sound travel through a vacuum?