"The Mystery of Lyle and Louise"
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Eisco Double Concave Glass Lenses
Clearance
Individual spherical glass lenses.
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E.I. Double Concave Glass Lenses
Clearance
Individual spherical glass lenses.
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Squishy Circuits, Lite Kit
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Uses conductive play dough and insulating play dough to teach electrical circuits basics in a fun, hands-on way.
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