"My drop has been salty seawater and fresh, clear rainwater. It has been hail and dew, ice and water vapour. It has tossed in deep oceans and flowed in great rivers. I has worn down the surface of the planet and reshaped it. Where does water come from? How does it behave? Why is it so important? As science writer Meredith Hooper tells the amazing story of a drop of water, from before the Earth was formed to the present day, the nature of water and the water cycle is explained" -- page 4 of cover.

"First published in Great Britain in 1996 by Frances Lincoln Children's Books.