Use the Happy and Sad Balls to explore polymer chemistry. One ball will bounce very high; the other ball will not bounce. A classic demonstration.
United Scientific Supplies HSB002 Happy/Sad Ball
Was:
$74.10
Now:
$37.05
- SKU:
- ZB647664
- Condition:
- New
- Availability:
- Free Shipping from the USA. Estimated 2-4 days delivery.
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Happy/SAD Ball Set
Was:
$107.78
Now:
$53.89
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United Scientific Supplies PNBS19 Pendulum Drilled Ball, 19 mm Diameter
Was:
$53.80
Now:
$26.90
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United Scientific Supplies PNBP19 Drilled Pendulum Ball, 19 mm Diameter
Was:
$53.80
Now:
$26.90
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United Scientific Supplies LODE02 Lodestone
Was:
$47.48
Now:
$23.74
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United Scientific BRA001 Ball and Ring Apparatus
Was:
$89.78
Now:
$44.89