![\"g67-bridges-30-03-09\"](\"https:\/\/i2.wp.com\/www.provoprimaryblog.com\/wp-content\/blogpix\/g67-bridges-30-03-09.jpg?resize=460%2C345\" "\\"g67-bridges-30-03-09\\"")
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In term 1, we used kits to build 3 types of bridge: a Roman Arch bridge from clay ‘bricks’, a truss bridge using triangular sections and a suspension bridge. In term 1, we used kits to build 3 types of bridge: a Roman Arch bridge from clay ‘bricks’, a truss bridge using triangular sections and a suspension bridge. In term 2, we did ‘The Bridge-Building Challenge.’ We were given 15 x 50cm lengths of 2mm square balsa wood. We had to build a bridge: […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[18],"tags":[],"jetpack-related-posts":[],"_links":{"self":[{"href":"http:\/\/provolearning.com\/blog\/wp-json\/wp\/v2\/posts\/1994"}],"collection":[{"href":"http:\/\/provolearning.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/provolearning.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/provolearning.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/provolearning.com\/blog\/wp-json\/wp\/v2\/comments?post=1994"}],"version-history":[{"count":1,"href":"http:\/\/provolearning.com\/blog\/wp-json\/wp\/v2\/posts\/1994\/revisions"}],"predecessor-version":[{"id":4755,"href":"http:\/\/provolearning.com\/blog\/wp-json\/wp\/v2\/posts\/1994\/revisions\/4755"}],"wp:attachment":[{"href":"http:\/\/provolearning.com\/blog\/wp-json\/wp\/v2\/media?parent=1994"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/provolearning.com\/blog\/wp-json\/wp\/v2\/categories?post=1994"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/provolearning.com\/blog\/wp-json\/wp\/v2\/tags?post=1994"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nIn term 2, we did ‘The Bridge-Building Challenge.’
\nWe were given 15 x 50cm lengths of 2mm square balsa wood.
\nWe had to build a bridge:
\n* measuring 40cm long and 5 cm wide
\n* that weighed less than 100g
\n* let a model car freely roll across the ‘roadway’.
\n* support a mass of 2kg
\nAll of our bridges passed, so . . . we added more mass until the bridges collapsed! Our 2 best bridges supported 7.5kg!\u00c2\u00a0 See a slideshow <\/a>of all our bridges and them being tested.<\/p>\n","protected":false},"excerpt":{"rendered":"