Changes

Activities/Turtle Art/Using Turtle Art Sensors (view source)

Revision as of 22:28, 8 November 2010

31 bytes added , 22:28, 8 November 2010

→‎Lemon battery

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Experiment with different materials. Try lemon cells in series.

Experiment with different materials. Try lemon cells in series.

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==Door bell / Burglar alarm==

==Links==

==Links==

2,486

edits

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