Why is the ocean important for humans and for the Earth? Did you know that the ocean covers 70 percent of the surface of the earth? And scientists have only explored a very small part of it! In Oceans and Seas! With 25 Science Projects for Kids readers ages 7 though 10 dive into the underwater world of some of the most amazing landscapes on Earth. On this amazing underwater adventure, kids experience the ocean's tropical reefs and spot crabs, sea sponges, and thousands of kinds of fish darting in its crags and folds. They'll meet a giant squid with eyes the size of dinner plates and an umbrella-like bioluminescent jellyfish. Through fun facts, engaging illustrations, links to primary sources, timeline, glossary, and resources, readers will be challenged to think about how ocean creatures and plants survive and depend on each other from the sunlit surface to the seafloor, where sunlight does not exist. Student-led STEAM activities, such as building a submarine and creating an ocean in a bottle, use the framework of the scientific method to reinforce learning and enhance critical and creative thinking skills as kids learn about efforts to conserve these incredible creatures and their habitats.