"activities&"
Thermostat
This working model thermostat will demonstrate how differential expansion is used to control temperature. A bimetallic strip is used to open or close an electric circuit when temperature changes. The contacts will carry about three amperes. The unit can be operated with a 6 V lantern battery, low voltage power supply, or a blow dryer. Mounted on a metal base; approximately 15 cm high.
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Changes in State Stem Kit
Two investigative areas covering six STEM activities.
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Pulse Glass
Ideal for demonstrating that vapor pressure increases when temperature increases.
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Thermoelectric Demonstrator
Demonstrate how the Second Law of Thermodynamics can create electricity.
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Liquid Convection Apparatus
Effective Method of Showing Normally Invisible Currents
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Bimetallic Strip Demonstration
Bimetallic strips attached to wooden handle to study thermal energy.
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Magdeburg Hemispheres
Employs Guericke’s Method for Demonstrating the Force of Atmospheric Pressure.
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Atmospheric Pressure Cups
Demonstrate the Force of Air Pressure Without a Vacuum Pump
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United Scientific™ Bimetal Strip/Compound Bar
Simple tool to explore the thermal properties of matter.
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United Scientific™ Advanced Thermostat Kit
Learn how home thermostats and circuit breakers operate.
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Ball and Ring Apparatus
Ball and Ring Apparatus demonstrates thermal expansion.

