Investigate Different materials have different properties that cause them to behave in different ways. They can be strong, heavy, bendy, stretchy, and squishy! Your task is to use the materials provided to build a bridge stretching 75cm between two banks. There are lots of different bridges for lots of different reasons. Look at the pictures of bridges from around the world, what do you notice? Architects use different shapes to make the materials they use behave in different ways. What are the strongest shapes? Do at home Engineers have to think about lots of different things that can happen to their bridge- these are called variables. When building any structure they have to think about what it will be used for, how long it needs to stand for and things like whether it could survive an earthquake! Try building some different types of structures, like towers or tunnels and see how strong you can make them… would they withstand an earthquake?* This Month in Science 7th November 1940 – The Tacoma Bridge in Washington began to resonate due to strong winds. Eventually, this caused to bridge to completely break apart! 13th November 1946 - The first artificial snow is produced in New England using cloud seeding, where solid carbon dioxide was spread over clouds. Find out more Bridges are a necessary part of our life. We use them to cross obstacles, such as water or roads. They have been around for thousands of years; one of the oldest bridges in existence can be found in Greece and was built in the 13th century BC. The world’s longest Bridge is 102.4 miles long and is found in China. It is called the DanyangKunshan Grand Bridge. The world’s tallest bridge is found in France and is 343m at its tallest point. The bridge is an example of a cable-stayed bridge and is called the Millau Viaduct bridge. *Always ask your parents/guardians permission How do spacemen kill time on long trips? They play astronauts and crosses.