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Use the Pressure-Pumper to pump air into a 2-liter bottle, then challenge your students to explain the resulting mass gain. Hands-on activities teach the relationship between pressure and temperature (demonstrated with a temperature strip), adiabatic expansion and cloud formation, and finding the mass of air. Ideal for elementary/ middle level students. Also known as the Fizz Keeper, the Pressure Pumper can be used to demonstrate that air has mass. Thermometer Strip and Bottle not included. Please note: The Individual Pressure Pumper fits most 2-liter and 20 oz soda bottles.
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🇺🇸 Ship from USA · On Agora since 2025
$7.20