Venn Diagram of the Panmure bridges- Comparing bridges

Today in Inquiry me and Viva worked collaboratively together to create a diagram comparing materials that engineers used to make the first panmure bridge and the bridge that still exists today.  In our Venn Diagram we included things like materials that were used to build our 2 bridges and similar things that make up the bridge. 2 pictures to show our comperance to the bridge in 1865 and the bridge that still exist today. We manage to find all the details that we needed. One of our facts is what were the piles made from well they were made from reinforced concrete which was built when it was low tied.  What was the first bridge and the bridge that still lives today made of it was really easy to find out what type of material it was made of. The type of material that the panmure bridges were made of was wood and reinforced concrete.