Last week we investigated friction using rice and plastic bottles.
Mrs James asked us to fill the bottles with rice and then pick it up using only a stick.
To begin with we thought she had missed out something but then as we followed the instructions and gave it a try there were shrieks of laughter as we all managed to pick up the bottles.
We had to make sure that the bottle was filled tightly right up to the top with rice and then we pushed the sticks in carefully.
The fact that all of the air had been pushed out of the bottle allowed friction to be created between the stick and the rice particles. Therefore when we tried to lift the bottle the stick held it up – FRICTION!
