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Podcasts & Activities
for Curious Kids & Their Grown-Ups

Activity: Spaghetti Tower Challenge


Explore all the steps of the design process: thinking, doing, prototyping, and iteration with this fun STEM challenge. The challenge is to build the tallest tower possible in 18 minutes that will support a marshmallow. This challenge is best done with a group of 3 or 4 friends or family members. The more ideas here, the merrier!



  • 20 sticks of dry spaghetti
  • one yard of string
  • one yard of tape
  • one marshmallow


Step 1: Gather all of your materials.

Step 2:  Your challenge is to build the tallest tower possible with just these materials. The tower must also support the weight of a single marshmallow. AND you must do all of this in under 18 minutes.

Step 3: Set a timer for 18 minutes.

Step 4: Get to it!

Step 5: Prepare to be WOWed by all the great ideas that come out of this challenge! Remember, grownups can always upload pictures and videos of your work and share them with us at