Thermal Properties of Matter
I2-29: Thermal Conductivity - Metal Bars and Liquid Crystals
Category: I2 Transfer of Heat
Purpose:
To show the different rates of heat conduction in several metals
I3-35: SOLAR BAG
Category: I3 Gases
Purpose:
To demonstrate how the density of a gas changes with temperature.
I2-28: WATER BALLOON AND CANDLE
Category: I2 Transfer of Heat
Purpose:
To demonstrate the transfer of heat by water
I6-41: MOLECULAR MOTION DEMO - LIQUIDS
Purpose:
Model the behavior of liquids.
I6-40: MOLECULAR MOTION DEMO - SOLIDS
Purpose:
Model the behavior of solids.
I6-34: MOLECULAR MOTION DEMO - TEMPERATURE OF A GAS
Purpose:
Model gas pressure.
I5-51: SPECIFIC HEAT - ALUMINUM AND COPPER
Category: I5 Laws of Thermodynamics
Purpose:
Illustrate calorimitry and to determine experimentally the specific heats of aluminum and of copper.
I4-61: BINARY PHASE TRANSITION - CRITICAL OPALESCENCE
Category: I4 Changes of State
Purpose:
Show the behavior of a binary fluid as it passes through the critical temperature.
I4-52: CARBON DIOXIDE BALLOON ON LIQUID NITROGEN
Category: I4 Changes of State
Purpose:
Demonstrate condensation sublimation.
I4-36: REGELATION - ICE UNDER PRESSURE
Category: I4 Changes of State
Purpose:
Demonstrate regelation.
I4-35: LOWERING THE FREEZING POINT OF WATER USING SALT
Category: I4 Changes of State
Purpose:
Demonstrate that the freezing point of water can be reduced by putting ice in a salt water bath.
I4-33: CRYOPHORUS
Category: I4 Changes of State
Purpose:
Illustrate freezing caused by cooling by evaporation.
I4-19: CONDENSATION OF STEAM - SODA CAN COLLAPSE
Category: I4 Changes of State
Purpose:
Surprising demonstration using condensation of steam.
I4-18: PULSE GLASS
Category: I4 Changes of State
Purpose:
Illustrate change of phase between liquid and vapor in an confined fluid.
I4-17: AIR BALLOON ON LIQUID NITROGEN
Category: I4 Changes of State
Purpose:
Demonstrate dramatically that the volume of vapor is greater than the volume of the same amount of liquid.
I4-16: DRINKING BIRD
Category: I4 Changes of State
Purpose:
Stimulate thought about heat exchange and liquid-vapor phase transitions.
K6-22: ENERGY CONVERSION - IMMERSION HEATER
Category: K6 Electric Circuits and Instruments
Purpose:
Demonstrate quantitatively the conversion of electrical energy into heat.
K6-21: HEATING IN CURRENT-CARRYING WIRE
Category: K6 Electric Circuits and Instruments
Purpose:
Show the conversion of electrical energy into heat.
K5-44: NON-OHMIC DEVICE - LIGHT BULB
Category: K5 Electrical Properties of Matter
Purpose:
Show the change in resistance of a light bulb with temperature.
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K5-01: PIEZOELECTRICITY
Demonstration of a piezoelectric crystal Read More
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K5-02: PIEZOELECTRIC CRYSTAL - AUDIBLE
Demonstrate that a piezoelectric crystal converts electrical impulses into physical vibrations Read More
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K5-03: PIEZOELECTRIC IGNITOR
Show a commercial use for piezoelectricity Read More
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K5-04: PIEZOELECTRIC GUN
Application of piezoelectricity to produce copious quantities of electric charge Read More
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K5-11: BATTERY MODEL
Simple model of a battery using a human as the source of energy Read More
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K5-12 BATTERY AND CURRENT - WORKING MODEL
Model of battery with circuit attached
Read More
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K5-13: ELECTRIC CURRENT - MODEL
Indicate how electrons really flow through a conductor Read More
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K5-14: ELECTRIC CELL
Demonstrate how an electric cell is formed Read More
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K5-16: CARRIER CURRENT DENSITY MODEL
Model the density of carriers crossing a plane Read More
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K5-21: AC PLUG CIRCUIT CHECKER
Check the wiring of 110VAC power sockets Read More
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K5-22: AC PLUG CIRCUIT CHECKER CHECKER
Demonstrate each different kind of wiring error Read More
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K5-23: ROTATING TWO-COLOR LED
Demonstrate that what comes out of a 110 VAC plug is in fact alternating current Read More
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K5-31 OHM'S LAW
Demonstrates relationship between current, voltage, and resistance Read More
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K5-32: RESISTANCE VS DIAMETER AND LENGTH
Determine how resistance varies as a function of diameter and length for the same material Read More
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K5-33 CONDUCTIVITY OF SALT SOLUTION
Shows that pure water is not conducting, but a solution of an electrolyte is conducting
Read More
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K5-34: THERMAL COEFFICIENT OF RESISTANCE IN COPPER
Show that the resistance of copper changes linearly with temperature Read More
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K5-35: RESISTORS AT LN TEMPERATURE
Illustrate materials with both positive and negative temperature coefficients of resistivity Read More
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K5-36: RESISTORS AT LN TEMPERATURE - LIGHT BULB INDICATOR
Demonstrate materials with both positive and negative temperature coefficients of resistance Read More
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K5-41: V-I CURVES FOR OHMIC AND NON-OHMIC DEVICES
Illustrate resistive properties of resistors and diodes Read More
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K5-42: TRANSISTOR
Demonstrate a transistor circuit Read More
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K5-43: NON-OHMIC DEVICE - V VS. I
Demonstrates the non-linearity of the V vs I curve for a diode
Read More
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K5-44: NON-OHMIC DEVICE - LIGHT BULB
Show the change in resistance of a light bulb with temperature Read More
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K5-45: SEMICONDUCTOR MODEL
Model of semiconductor Read More
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