Let's see how the colors appear with these 3-D glasses
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Learning about pitch, using different size percussion frogs
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Air pressure is really strong. I can't get these suction cups apart.
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This is a mirage. There's really no pig here.
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What's the effect from momentum when two balls are dropped simultaneously?
Viewed: 2001 times.
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Betcha you can't pull these suction cups apart.
Viewed: 1786 times.
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Squiddy works from the effects of air pressure, too.
Viewed: 2005 times.
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