Bell Jar and Ringer
| Unit Price | $155.00 |
| 10+ | $146.00 |
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.
Resources
Resources
Product 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.
Product Specifications
Specs:
Size: 8.5" diameter, 11.5" tall
Ringer requires 2 AA Batteries (Sold separately)
What's Included:
Bell Jar
Vacuum Plate
Battery-operated electric ringer
Connector hose
FAQ
Warning: California Residents
WARNING: Cancer & Reproductive Harm — www.P65Warnings.ca.gov