This is an easy, fun experiment to find out how strong different shapes are. Shape 1 sheet of paper into different shapes and see how much they can hold. We made a triangle, square, and cylinder.

A hypothesis is a special word that scientists use for “an idea that you can test,” it is also a kind of prediction. Make a hypothesis of which shape will hold a book best. Do you think a circle will be stronger than a square?

Test your hypothesis out! Does your shape hold more than one book?

Can you think of other shapes or structures that might be stronger? Share your ideas below!

Activity from All for the boys

Cora, Izzie and I think that the square base structure will hold up the book the best.

Our group thinks the square will win.

Samantha: Square

Hannah: Square

Gracie: Square

My group said a circle would work the best.

We were wrong. The cylinder held up the most books like I had told my buddies, but they bribed me to say square.

The square held the book?