Vacuum Stoppers (Pack of 10)
Product Code: F28
These rubber stoppers create the opportunity for all students to investigate gas law and vacuum relationships on their own.
New Zealand Price Estimate: |
$8.70 |
Product Description
Forget about vacuum demonstrations requiring expensive vacuum pumps and glassware. Students can now perform a number of exciting investigations right at their work stations for the fraction of the costs.
Our unique rubber stopper will block airflow to a plastic or gas syringe tip so when the plunger is extracted, a vacuum is created!
Students can easily:
- expand a small balloon under reduced pressure;
- boil water at 70˚C and understand why boiling water up a mountain is a problem;
- watch a marshmallow & shaving cream expand and more.
Syringes or gas syringes are available from medical or lab suppliers.
Teach: Influence of air pressure, boiling point, Boyle’s law, gas laws
Age: 10+
Price is for 10 stoppers.
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