What's this Science Bite about?
Try and construct a tower from triangles and see how strong it can be.
You will need:
How to do this experiment
- Use your pen and ruler to mark the card into strips of 12cm x 4cm and carefully cut these out. You may need to ask an adult for help.
- Mark a line at 4cm and 8cm along the strips.
- Fold along the marks and tape the strips to make triangles.
- Start building! Try putting 3 triangles in a row and lay a strip of cardboard on top. Now build another layer with 2 triangles and a strip of card.
- What can you put on top? Can you build a bigger tower? Why is it so strong?
Find out more.
Triangles are widely considered to be a strong shape. The reason for this is that the forces applied to a triangle are spread out across the 3 sides. In addition to this the fixed shape makes it difficult to deform. You can try comparing the strength of structures that are made up of squares or triangle to try this yourself.