Year 7 students at Cornerstone have been given the chance to expand their knowledge of friction and gravity by one of the staff responsible for this year group.
Mr Howes has created a contraption which gives his students the opportunity to explore the difference that certain substances have on the movement of objects. He has made an 8 track course which is lined with a variety of products, and the students have been able to test the effect that they have on a falling marble.
Silicon, vegemite, honey, detergent, aqium solution, cooking oil and margarine were the products tested, and a selection of marbles of varying sizes were put through their paces late last week.
Students excitedly set up the track, and recorded the speed that the marbles took to reach the bottom of the downhill slope. Factors, such as the size of the marble, the time they took to reach the end and the substance within the track were all noted, and used to scientifically determine which substances acted as a lubricant, and which inhibited the progress of the marbles.
What was the result? It appears that silicon is the prefered lining when you are seeking the least resistance - and the larger the marble, the less likely it is to be affected by the products within their track. Honey and vegemite were by far the worst, with many of the smaller marbles getting stuck short of the finishing line.
So, according to Mr Howes and his Year 7s……..if you wish to reduce the friction and resistance experienced by a falling marble, reach for the silicon – and leave the honey and vegemite for the breakfast table.