Smithsonian Crystal Growing Crystals with Bonus Pack Crystal Growing Kit with Bonus Crystal  

Smithsonian Crystal Growing Crystals with Bonus Pack Crystal Growing Kit with Bonus Crystal

Smithsonian Crystal Growing Crystals set comes with three fun experiments to perform Activity set introduces kids to a world of adventure, discovery and wonder Kit is a great way to learn about crystalline habitats and crystal structures Includes a ...

  $19.99
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The Original Magic Marbles Bonus Pack Magic Marlbes with 4pk Bonus  

The Original Magic Marbles Bonus Pack Magic Marlbes with 4pk Bonus

Grow amazing magic marbles right before your eyes with the Magic Marbles Small Box Kit Activity set will provide hours of good times Simply add water to the colored marbles and watch them expand into stunning, bouncy translucent spheres Marbles dry ...

  $18.49
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The Smithsonian Motor Works Model Engine NSI Smithsonian Motor Works  

The Smithsonian Motor Works Model Engine NSI Smithsonian Motor Works

Activity set lets you build a real working battery powered four cylinder model engine Learning accessory features real lights and sounds Educational set lets you see how the pistons fire with the correct timing Watch the Belts and Fan turn Includes,...

  $32.49
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