- Sound is tiny vibrations in the air
- Oscilloscope- makes sound waves visible
- The ear is like a funnel that helps sound go into the eardrums
- Sound travels faster through metal and brick faster than through air
- Sound travels 18 times faster through metal than air
- An echo happens when sound bounces off something
- When sound enters the ear canal it becomes smaller
- Higher frequency = Higher pitch
- Lower frequency = Lower pitch
Tuesday, 15 March 2011
Notes on Bill Nye Sounds Video
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