We often look at mountains as something beautiful to admire. This informative book describes the processes that create mountains over time. It examines plate movements along faults, volcanic activity, and other actions that have formed Earth's mountains over billions of years. Photographs, diagrams, and step-by-step explanations guide readers to a deeper understanding of the processes that shape our planet. In a fun follow-up activity, readers use available materials to model a mountain-building process on their own.