21st January 2016D Gray Year 3 and 4 have been investigating which materials create the most and the least friction! They’ve made brilliant predictions and have used fair testing to find out the results. https://cdn.realsmart.co.uk/8099deea7c4aecda2d8a12f8a9e59c3a/uploads/2016/01/20160121_145726.mp4 Related