Comparing the Specific Heat of Metals I
Comparing the Specific Heat of Metals II
Paramagnetism of Transition Metal Salts
Computer NaCl Crystal Cleavage
Octahedral, Hexagonal, and Tetrahedral Shapes
Thermoluminescent Sodium Chloride
Jars of Sand Representing Electron Flow in a Band
Temperature Dependence on Resistance
Thermal Conductivity of Metals
Glycerine Tube Representing Hole Energies
Counting Photons Using a Solar Cell
Effect of Pressure on Melting Point of Ice
Fixed Ball and Stick Crystal Models
Memory Metal
Description: Memory Metal is straightened and then dipped into hot water. The metal returns to its original shape.
This demonstration is also available on JCE Solid State Resources CD-Rom and JCE Software “Chemistry Comes Alive!” CD-Rom.
Source: Ellis, A. et. Al. Teaching General Chemistry: A Material Science Companion
Year: 1993 Vol: N/A Page: 282
Keywords: Memory metal, Hot water
Rating:
Hazard: Some
- Electric shock hazard
- Scalding hazard
Effectiveness: Good
- Results are clearly observable without guidance
- Good connection from demo to course material
- Mild effects are seen by audience
- High reliability
- Time to results is very low
Difficulty: Medium
- Some intermediate steps to results
- Some sequential manipulations
- Demos at non-standard conditions
Safety Precautions:
- Eye protection required
- Gloves required
- Thermal gloves required
- Use of UL approved three-prong plug and outlet required
Class: Solid State Chemistry
Division: Solid State Chemistry