Vacuum Bell Jar Demonstrator
Investigate the effects of low pressure and a vacuum on sound and different objects.
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SKU:
P03016
$297.00
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Experiment with sound inside a vacuum with this bell jar demonstrator.
Sound waves don’t travel through a vacuum. Prove it with a ringing bell inside a sealed glass jar. As air is gradually pumped out of the jar, the bell sound becomes faint, then disappears.
Includes jar, vacuum plate with valve, rubber seal, and electric bell system. You will also need a vacuum pump and 2 AA batteries (not included). The bell may be removed for other vacuum experiments.
What you get
Vacuum Bell Jar Demonstrator. Air letting plate, glass bell cover, electric bell, air valve, rubber tubing and seal. 30 x 23 x 20 cm. Requires Vacuum pump and 2 AA batteries (not included).
| Length (cm) | 37 |
|---|---|
| Width (cm) | 25 |
| Height (cm) | 25 |
| Age Group | 12+ Years |
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