Welcome to practical physicsPracticle physics - practical activities designed for use in the classroom with 11 to 19 year olds

Cloud chambers

Cloud chambers provide a satisfying and captivating activity for students, allowing them to see the ionisation trails left by alpha particles and sometimes cosmic rays. This collection provides some preparatory demonstrations and some follow-up activities to support the main event: the class practical with diffusion cloud chambers. It is well worth setting aside plenty of time to allow a class to experiment with cloud chambers. 
There are some good opportunities here for recording and displaying results using digital stills and movie cameras. 


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