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A big part of STEM activities in elementary are engineering activities for kids. Constructing bridges out of various materials like this q tip bridge and testing them has long been a staple of the classic bridge building engineering challenge, but for this version, I used cotton swabs because I was out of toothpicks and it …

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Did you know you can make a LEGO car even if you don’t have wheels? It seems impossible, but you can make a wheel-less LEGO car that works. Follow this easy tutorial for how to make a LEGO car without wheels. This is one of our favorite simple LEGO car designs. The beauty of building …

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