Science : Triangle? Or Square? Which one is stronger?

This is what we did in our science class for the last couple of days.
We built a square and a triangle and tested to see which one was stronger.


After the first experiment, we tried to make a square stronger by adding extra strips.
We learned that a triangle is stronger and stable than a square.

In Our Science Class..

We started the Stability: Strong and Stable Structures unit.
Here are some images of what we discussed in the class.

We walked around the school building to find some natural structures and man-made structures.

If an object is stable, that means that it will stand firm, it won't fall over. Yesterday, we tested with three different cardboard tubes on a tray to see which tube would fell over first.

Based on our experiment, we learned that short structures are more stable than tall structures.

Today, each group was provided with a tray, three different sizes of cardboard tubes, dried beans, a tape, and an elastic band. Our mission was to create a more stable structure with the tallest cardboard tube.