Simple Circuits
$19.99
This is an amazing new technology that allows kids to design and engineer working circuits on paper. They will use LED lights...
Equilateral Prisms, Small, 4" long
Product Number: LER2058
$7.99
Your child will be amazed by the tricks light can play with this equilateral prism.
Your child will be amazed by the tricks light can play with this equilateral prism.
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Your child will be amazed by the tricks light can play with this equilateral prism.