Triangles
Last Wednesday, during Open day, 4H learned about triangles, and how they make structures stronger.
We observed a video about the Tacoma Bridge swaying side to side before collapsing and discussed why it had collapsed.
Next, we learned that Triangles can help a bridge be more stable as they distribute the forces acting on them more evenly and have less chance of collapsing.
After that we got some bluetack and match sticks and had a go at making Triangle-based Pyramids (tetrahedrons).
Then we attempted to make a cube with Triangles in it, which helped make the sides stronger.
We watched Brainpop, which explained the forces acting on different types of bridges.
by Eva and Lotus
Last Wednesday, during Open day, 4H learned about triangles, and how they make structures stronger.
We observed a video about the Tacoma Bridge swaying side to side before collapsing and discussed why it had collapsed.
Next, we learned that Triangles can help a bridge be more stable as they distribute the forces acting on them more evenly and have less chance of collapsing.
After that we got some bluetack and match sticks and had a go at making Triangle-based Pyramids (tetrahedrons).
Then we attempted to make a cube with Triangles in it, which helped make the sides stronger.
We watched Brainpop, which explained the forces acting on different types of bridges.
by Eva and Lotus