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Get 40 LEGO STEM challenge cards plus instructions for just $3 (a $7 value!)

That's less than 10 cents per challenge!

Middle School LEGO STEM Challenges$7

Don’t miss the companion set!

Special one-time offer just $12
Get the e-book of 20 science experiments you can do in 5 minutes or less! Instructions, full-color photos, and worksheets included!

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    Middle School LEGO STEM Challenges$7

    • Total payment
    • 1xMiddle School LEGO STEM Challenges$7
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