Time Lapse photography is often used on Natural History programmes to show such things as the opening of a flower, the melting of snow etc and a group of Yr 9 students have been trying out the technique using a plant as a prop. They agitated the leaves by spraying the plant with water and wafting air at it but we found that the movement was very subtle....you can see it better in the photo below where we have superimposed all the images
