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 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
The Drinking Bird
Description: This demo illustrates that the evaporation of water is endothermic.
This demonstration is also available on JCE Software “Chemistry Comes Alive!” Vol. 2 CD-Rom.
Source: Shakhashiri, B.Z. Chemical Demonstrations: A Handbook for Teachers of Chemistry
Year: 1989 Vol: 3 Page: 249
Keywords: Happy bird, Dichloromethane, Ethanol, Evaporation, Endothermic
Rating: 
Hazard: Some
- Sharps hazard
- Acute toxicity hazard
- Mild flammability hazard
- Eye irritation hazard
Effectiveness: Average
- Results are observable with guidance
- Mild effects are seen by audience
- Noticeable contrast between systems
- Good reliability
- Time to results is medium
Difficulty: Low
- Manipulations are simple for most to perform
- Some intermediate steps to results
- Simple procedures
Safety Precautions:
- Eye protection required
- Gloves recommended
- Absorbent materials on hand
- Handle glass object with care
Class: Intermolecular Forces, Liquids and Solids, Equilibrium
Division: General, Physical Chemistry
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