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Save up to 50% OFF cool science kits, toys and games.
Save up to 50% OFF cool science kits, toys and games.
Harbottle Apparatus - Image One
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Harbottle Apparatus

by xUmp.com   Item#: 15145  
List Price:$39.99
Sale Price: $19.99 /each
You Save: $20.00 (50%)
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Discover air pressure like never before. With just a balloon and a bottle, this item has the WOW factor you have been searching for!

Simply place the balloon into the opening of the bottle and stretch the mouth of the balloon over the mouth of the bottle. Blow into the balloon and, when it is fully inflated, close the bottom hole of the bottle with a stopper. The normal air pressure from outside allows the balloon to stay inflated! There is no twisting or tying required.

Astonish your students even more with the strength of air pressure by filling the balloon with water before releasing the stopper! This is an excellent teaching tool for introducing pressure and discussing its applications, such as vacuum cleaners, flight, pumps, weather, and even how we breathe.

Comes with a Teacher’s Guide

Includes:

  • Glass bottle - 5" diameter
  • 2 balloons
  • Rubber stopper
  • Grades 5 and up


Age:
12 +
Box Size:
8.00 x 7.00 x 6.00 inches
20.32cm x 17.78cm x 15.24cm
Weight:
0 lb 14 oz
0.40 kg

Warning:
CHOKING HAZARD
Small parts. Not for children under 3 yrs.
Children under 8 yrs. can choke or suffocate on uninflated or broken balloons. Keep uninflated balloons from children. Discard broken balloons at once.


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