STEM

Showing 49–60 of 383 results

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  Building a Computer

  $9.95 – $24.95
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  Building a House

  $9.95 – $24.95
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  Building a Road

  $9.95 – $24.95
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  Building Bridges

  $9.95 – $24.95
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  Building Dams

  $9.95 – $24.95
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  Building Fighter Jets

  $9.95 – $24.95
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  Building Race Cars

  $9.95 – $24.95
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  Building Reusable Rockets

  $11.95 – $24.95
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  Building Rockets

  $9.95 – $24.95
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  Building Skyscrapers

  $9.95 – $24.95
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  Building Stadiums

  $9.95 – $24.95
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  Building Tunnels

  $9.95 – $24.95