Spontaneous copper plating? (without subtitles)
Video (02:23 minutes, without sound):
The experiment shows how the surface of a 1-euro coin that is placed on aluminum foil in a copper sulfate solution becomes coated with the copper deposited from the solution.
The film is also available on the media portal as a version in which explanations are displayed as subtitles for some scenes: “Spontaneous copper plating? (with subtitles)."
Information and ideas:
The experimentation instructions for “A3 Lemon batteries and other batteries" contain two subexperiments (4 and 5) that involve copper sulfate. For safety reasons, however, some teachers may not want to allow any experiments involving copper sulfate in their classrooms. In this case, the teachers can show this video with subexperiment 5 as an alternative. This allows the overall experiment consisting of subexperiments set up as many didactic steps to be completed systematically anyway.
Detailed experimentation instructions are found in the medium “A3 Lemon batteries and other batteries (student instructions)" for subexperiment 5, which is available on the media portal.