1. Lesson 66 Sound Energy Day 3

2. Day 3 Elaborate 1
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3. Blow on your sound sandwich. Describe the sound you hear.
Day 3 Elaborate 2
Blow on your sound sandwich.
Describe the sound you hear.

4. Move the straw spacers closer together. What will happen?
Are you making the part of the rubber band that vibrates longer or shorter?
Will the sound be high or low?
Blow on the sound sandwich.
Describe the sound you hear.
Did the sound change? Describe the change.
Day 3 Elaborate 3
Big rubber band in the middle

5. Move the straw spacers further apart. What will happen?
Day 3 Elaborate 4
Move the straw spacers further apart.
What will happen?
Are you making the part of the rubber band that vibrates longer or shorter?
Will the sound be high or low?
Blow on the sound sandwich.
Describe the sound you hear.
Did the sound change? Describe the change.
Big rubber band in the middle

6. What connections can you make about the rubber band and the sound?
Day 3 Elaborate 5
What connections can you make about
the rubber band and the sound?
When the part of the rubber band that vibrates was shorter,
the sound was ______________.
(high, low)
the sound was ____________.
SCIE_2_A_Les66SoundDay3_MAT CFISD

7. What’s Going On? When you blow into the Sound Sandwich
Day 3 Elaborate 6
What’s Going On?
When you blow into the Sound Sandwich
you make the large rubber band vibrate
that vibration produces the sound.
When you moved the straw spacers closer together
you shortened the part of the rubber bands that can vibrate
so the sound was different, it had a higher pitch.
When you moved the straw spacers further apart
you made the rubber band longer so it vibrated differently
so the sound was different, it had a lower pitch.

8. Day 3 Elaborate 7