Describes how water and wind change sedimentary rock over time. Features color photographs and illustrations, fact circles, tips on rock hunting, a chart of different kinds of sedimentary rocks, a glossary, and a science lab activity.

Series subtitle: The hard facts about rocks.

A wave in the desert -- What is the wave made of? -- Making sediment -- Sediment on the move -- Turning into rock -- Making rock with wind -- Shaping the wave -- The Old Man of Hoy -- Rock hunting -- Science lab.