A volcanic eruption is an impressive natural event. How does it happen? Readers find out in this exciting look at an essential aspect of Earth science. Basic facts about Earth's layers, volcanic activity, and lava flows are presented through simple, clear text that early elementary readers can understand. This accessible language and straightforward structure allow for confident independent reading about an exciting topic. The text is paired with vivid photographs of volcanoes in action, inspiring readers to see science at work in the natural world and marvel at the power of nature.