Science
Waves, Light & Sound
Conceptual
8–9 yrs
Pitch of Sounds
声音的音调
Description
Find patterns between the pitch of a sound and features of the object that produced it
Mastery Evidence
- Describe the pattern: shorter/thinner/tighter objects produce higher-pitched sounds
- Demonstrate pitch changes using at least one instrument or everyday object
- Explain pitch as how high or low a sound is, determined by how fast the object vibrates
Assessment Prompt
Can your child explain why a short guitar string makes a higher sound than a long one, or why a small drum sounds higher than a big one?
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