Bridge Building

We have been learning about forces and how they help shape the sort of bridges that we build.  

We learned that there are three main types of bridge design; beam, truss and suspension.  Using this knowledge we designed and built our own bridges.Miss Fletcher set the challenge that our bridges had to be 30 cm long and strong enough to hold an object.In my group there were Ella and Mikayla.  We used egg cartons, ice block sticks and paper towels to build our bridge.Here is a photo of our truss bridge. What I like best about our bridge is the road markings.