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Lesson 36 of 84 · Engineering and Design
ExperimentThe Electromagnetic Spectrum (Part 2)
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
- constraint
- criteria
Materials Needed
- markers
- popsicle sticks
- pennies
Safety First
- Work in a well-ventilated area when using vinegar or other strong-smelling substances.
- Dispose of materials properly after the experiment.
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?