6Poon Sing was about to go out and play soccer with his friends when his mother stopped him. What had Poon Sing forgotten to do before leaving? And why did it matter? Follow Poon Sing and his mother as they discover just how one little action from him could make a huge difference to the sustainability of our world.Every book in the I Can Change the World... collection contains a creative story that highlights the importance of individual action on environmental sustainability. Through engaging narratives and full-colour illustrations, the I'm a Little Scientist series introduces children to the exciting and ever-advancing world of science.