In our science topic of forces and magnets we have been investigating friction. We experimented by changing the surface on a ramp and measured what height the ramp needed to be lifted to for the car to travel down. Some of the surfaces we used were a whiteboard, some paper, a book and a school jumper. We discussed how to keep the test fair and we then analysed our results as a class, which allowed us to form a conclusion and determine the effect of friction.

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