I Read! You Read! books are designed for shared reading between a young reader and an adult. Rocks and minerals are all around us, but they're not all the same. Discover fossils and find out how they form, what makes them unique, and what they tell us about the past. Learn about some fabulous fossils found around the world, such as Sue, the Tyrannosaurus rex. Features include comprehension questions, educational front/back matter, full-color photographs, glossary of key words, index, informative sidebars, note to parents and educators, and table of contents.