In the beginning of the book is about how the two girls named Mari and Jada. They are very interested in rocks. every day at recess they would go rock hunting. That is until Mari moved away a month after they met. In the middle of the book jade's teacher miss Taylor told the class that they have a new project assignment. She also said that Jada had to work with to other classmates. Jada had to work with two other girls named Lena and Simone. Simone was the bossy one and Lena is the one that goes with the flow. Simone hated jade. The end of the book is about how even though Simone did not like Jada idea for the project that doesn't mean they could not be friends. A week later the science fair help work out their problem, but they did not win the science fair.