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  • Writer's pictureMade by Emma S.

Marshmallow STEM Activity

Updated: Jun 26, 2021

Sometimes trying to find STEM activities suitable for younger children can be tough. This activity can be used for engineering or math. Children can build towers with the toothpicks and marshmallows and use critical thinking to come with a design that keeps the tower from falling over. Children can also use the materials to practice making shapes from the most basic to more advanced ones. While this activity is for school-age children, it can be adapted to suit younger and older children. It also provides a tasty treat!


  • Toothpicks

  • Mini marshmallows

Hi everyone! Let’s get started with discussing with your child if they are allowed to eat the marshmallows during the activity or if they should wait until after. You should also remind your child that toothpicks are pointy and can hurt. 

Step 1: Lay out your toothpicks and marshmallows on a flat surface. Put the marshmallows on a napkin or paper plate.

Step 2: Decide if you are going to build a tower or create shapes.

Step 3: To start creating your design, stick one end of the toothpick into the marshmallow. Next, add another toothpick to the opposite side of the marshmallow. Continue adding marshmallows and toothpicks to each other until desired shape is created.

A tip for creating a tower or three-dimensional shape is creating a sturdy base.

This activity can be adapted for older children to be a competition between friends or siblings to see who can build the tallest tower with the least number of toothpicks. It can also be used for younger kids learning their letters to create letters.

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