80
Lesson 80 of 84 · Waves
ExperimentThe Electromagnetic Spectrum (Part 4)
What You'll Learn
Sound is a vibration that travels through matter as a wave. It cannot travel through a vacuum. Sound travels fastest through solids and slowest through gases.
Key Words
- model
- prototype
Materials Needed
- scissors
- straws
- paper clips
- rubber bands
Safety First
- Wear safety goggles when mixing liquids.
- Wash hands after handling materials.
Steps
Step 1 — Read
Read and learn: Sound is a vibration that travels through matter as a wave. It cannot travel through a vacuum. Sound travels fastest through solids and slowest through gases.
Step 2 — Do
Measure and record your data in a table.
Step 3 — Observe
Note any unexpected results.
Step 4 — Record
Share your findings with the class or a partner.
Check Your Understanding
Question 1
1 of 3What determines the pitch of a sound?