Balloon Full Of Carbon Dioxide
Effect of Pressure on Melting Point of Ice
The Liquid Phase of Carbon Dioxide
Vapor Pressure of Pure Liquids
Boiling Acetone at Reduced Pressure
Magic Sand Models the Hydrophobic Effect
Surface Tension: Floating Duck
Surface Tension of Water: The Floating Paper Clip
Will Tissue Hold Water? Interfacial Tension
Computer NaCl Crystal Cleavage
Variation of Volume of Water With Temperature
Surface Spreading and Surface Tension
Gel Formation with Sodium Alginate and Calcium Chloride
Boiling Acetone or Water at Room Temperature
Density of Sulfur Hexafluoride and Sublimation of Certain Gases
Copper Spring
Description: A helical coil made from copper is frozen in liquid nitrogen and behaves like a spring. It becomes malleable when returned to room temperature.
Source: UW Card Catalog
Year: N/A Vol: N/A Page: N/A
Keywords: Copper coil, Liquid Nitrogen, Weight, Temperature, Material properties
Rating: 
Hazard: Some
- Cryogenic burn hazard
- Asphyxiation hazard
- Implosion hazard
Effectiveness: Average
- Mild effects are seen by audience
- Good reliability
- Results are observable with guidance
- Time to result is medium
- Somewhat connected to course material
Difficulty: Medium
- Demos at non-standard conditions
- Some careful manipulations required
- Use of vacuum applied glassware
- Simple procedures
Safety Precautions:
- Cryogenic gloves required
- Eye protection required
- Perform in a well-ventilated area
- Temperature resistant surface recommended
Class: Intermolecular Forces, Properties of Solids, Crystal Structure
Division: General
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