I can read book.

"Vivi loves science! In this STEM-themed Level 3 I Can Read! title, Vivi and her friends visit the aquarium and are introduced to the concepts of density and buoyancy. A great choice for aspiring scientists, emerging readers, and fans of Andrea Beaty's Ada Twist, Scientist. Includes activities, a glossary, and a fun experiment to do at home. "-- Amazon

"Vivi loves science--and experimenting! In this Level 3 I Can Read! title, Vivi and her classmates visit an aquarium and learn about the creatures living in the big display tank. But why do some fish swim while others bury themselves in the sand? Vivi will have to experiment to find out! The Loves Science books introduce readers to girls who love science, as well as basic concepts of science, technology, engineering, and math. This Level 3 I Can Read! explores swimming, sinking, floating, and density, and includes an experiment to try at home. A great pick for newly independent readers and an ideal companion to Cece Loves Science: Push and Pull and Libby Loves Science: Mix and Measure. " -- Amazon