February’s STEAM at Home program featured Awesome Architecture and fun building activities. We learned that x-bracing (seen here on the John Hancock Center in Chicago) is one way that helps keep buildings straight and tall when wind blows on them. X-braces and shear walls collect wind forces and carry them to the foundation. Build your own braced tower at home with a few simple materials! Idea and images from Building Structures and Towers by Tammy Enz.
- Supplies:
- spaghetti
- mini marshmallows (the book shows gumdrops, but we used marshmallows)
- ruler (optional)
Instructions:
Break 4 noodles in half and make sure they are roughly the same length. Put marshmallows in the corners to connect them into 2 squares.
![null](https://mppl.org/wp-content/uploads/2023/05/Braced-Tower-extra-1.png)
Break off about 1 inch from 4 more noodles and use these to connect your 2 squares. What happens when you push on the tower?
![null](https://mppl.org/wp-content/uploads/2023/05/Braced-Tower-2.png)
Add 2 noodles to one side make an X. Repeat on all 4 sides of your tower. Try pushing again. Now what happens?
![null](https://mppl.org/wp-content/uploads/2023/05/Braced-Tower-3.png)
As the marshmallows harden, your structure will get even stronger. What other structures can you build?
For more books and projects that explore engineering, check out one of these STEAM Kits.