Rubber band wind up car

Rubber-Band Powered Cars

In Room O we have been learning about ‘The Notion of Motion’. Our latest experiment was making rubber-band wind-up cars. First we all got our 1.5-2.25 litre bottles and drilled axle holes on either side. After that we cut out a large hole on top of the bottle to make it easier to wind up the car. To make the wheels we took four CD’s,and eight milk bottle lids for hubcaps. We hot-glue gunned the hubcaps to the middle of the CD after drilling holes in them. Then we got two skewers for axles. We rammed the wheels onto the skewers and put the axles with the CD’s on them through the holes on the bottle we drilled earlier. Mr. Ward drilled two holes in the bottle lid to put the rubber bands in. We cut off a 3 cm piece of skewer for the rubber band to hook onto. We knotted three rubber bands together and pushed them through the bottle lid holes. To make the rubber band car go we pulled the rubber band onto the little hook on the back of the axles and wound up the back wheels until it could not go any further. We placed it on the floor, let it go and watched it zoom away. In the future we hope to have a race!


By G. Quin and K. Rogers

drilling time

making cool cars ;]

hot hot!

cool car

working hard