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Water expands when it freezes

Description

In this demonstration a bottle is filled with water and allowed to freeze. The water expands as it freezes which breaks the bottle. This is useful when teaching about the weathering of rocks and freeze-thaw.

Credits

:
This resource has been provided by, or developed in partnership with, Nuffield Foundation
water-expands-when-it-fre...

 



Apparatus Chemicals

Per demonstration:

Glass bottle with a lid (Note 1)

Plastic zip-lock type bag (Note 2)

Water

Refer to Health & Safety and Technical notes section below for additional information.

 

 

 


 




In this demonstration a bottle is filled with water and allowed to freeze. The water expands as it freezes which breaks the bottle. This is useful when teaching about the weathering of rocks and freeze-thaw.

ADDITIONAL INFORMATION

This is a resource from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry. This collection of over 200 practical activities demonstrates a wide range of chemical concepts and processes. Each activity contains comprehensive information for teachers and technicians, including full technical notes and step-by-step procedures. Practical Chemistry activities accompany Practical Physics and Practical Biology .