When it comes to simple prep STEM projects for kids, these pretzel and marshmallow structures take the cake. The hands-on (and tasty!) challenge is a motivating engineering activity for little builders.

Getting Ready

Prepping for the activity was as quick and easy as heading to our pantry.

I grabbed a bag of jumbo sized marshmallows we had leftover from a summer camping trip and pulled out a bag of pretzel sticks.

Building Structures

My kids were eager to play with food so they happily began building. They linked the pretzels together by gently pushing one end into a jumbo marshmallow.

Middle Brother (age 4) started by making flat 2-dimensional shapes including triangles and squares.

Meanwhile Big Brother (age 6) began tackling 3-dimensional structures including triangular prisms…

And cubes…

Plus lots of funky, creative unnameable structures.

The simple prep, edible engineering project kept them entertained for an hour. There were endless combinations and possibilities!

30 Jaw Dropping Science Activities

For more fun, grab a copy of our Super Cool Science Kit – including 30 jaw dropping science experiments for kids PLUS a no prep science journal.