Bell Jar and Ringer
Item # P7-6500
The bell jar (named for its shape) and vacuum plate are supplied with a battery-operated electric ringer. The ringer is mounted on rubber feet to dampen the vibrations, so students can clearly hear the drastic reduction in sound when the air is removed.
WARNING: Cancer & Reproductive Harm -- www.P65Warnings.ca.gov
In Stock
Additional Details
Hearing is believing: Can sound travel in a vacuum?
Showing that sound requires a medium to travel through requires specific equipment, and it's the only way to really demonstrate the concept.
The ringer is mounted on rubber feet to dampen the vibrations, so students can clearly hear the drastic reduction in sound when the air is removed. 8.5" diameter, 11.5" tall, and requires 2 AA batteries. Electric vacuum pump not included, see recommended products.
Products being sold are not toys. They are for Educational / Laboratory use only. They are not for use by children 12 and under.
Resources
What’s Included
This bell jar (named for its shape) and vacuum plate is supplied with:
- A battery-operated electric ringer
- Connector hose
Accessories
| Order Qty | Price | Qty for Discount | Discount Price | Total Savings | ||||
|---|---|---|---|---|---|---|---|---|
|
AA Battery Item # P8-5600 |
|
|
$1.20 | 50 | $1.00 | ||
