Oh, Those Three-Sided Triangles!!!
All science unit, you have been asking how a house manages to stay standing if it is in the shape of a square. You learned from the very first experiment that a square is a very weak shape and will collapse very easily. Well, today you finally found out how a house stays standing: the answer is (drum roll please . . . .) triangles!!!
Triangles are one of the strongest shapes we can use to build. Builders connect the wall to the ceiling or roof with a beam that makes the shape of a triangle. Gustav Eiffel used triangles to build his Eiffel Tower! Bridges use triangles for strength!
In the video below you can see how students used triangles to make domes that held a lot of strength.