This would be a great way to create student operation games without having to solder! I think that grade students would love to try this out.
LDR Circuit Diagram
Sawdust Is Man Glitter Ornament-Christmas Ornament-Gift for Him-Gift Under 10-Holiday Decor-Home Decor-Christmas Decor by StudioSheppard on Etsy
Simple LDR led circuit
Light Dependent Resistor #LDR Circuit.
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Light Activated Switch Circuit
Basic Automatic Day-Night Lamp with LDR - Circuit Schematic Electronics