Geology is the study of Earth's physical features, and this set covers many of the most significant ones: weathering and erosion, fossils, volcanoes and earthquakes, the rock cycle, Earth's layers, and soil. Readers are invited to further their curriculum knowledge outside of the classroom and immerse themselves in the key focuses of Earth's functions. The set contains age-appropriate text paired with eye-catching illustrations and fun facts, making for an immersive and entertaining reading experience. Readers won't be able to put the books in this set down!