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List Price : Price : $67.00
List Price : Price : $67.00
Product Description
Demonstrate safely and economically that sound waves require a medium in which to travel. Simply connect the buzzer terminals to a DC power source (6 V or greater; not included) and evacuate with a vacuum pump (not included). The sound of the ringing buzzer will diminish as air is evacuated from the jar. * Instructions included. *
- Great for Science Fairs
- Excellent for Home School Lessons
Bell in Vacuum Jar Reviews
Bell in Vacuum Jar Reviews
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