Animal habitats and earth biomes are popular subjects in school curriculum. Depending on your school's science program, kids will study different habitats in various grades of their school career. In high school, wildlife biology classes look in-depth at earth biomes. Oceans are a favorite biome with kids. If you're studying oceanography or marine biology in school, here are free printable lesson plans and science worksheets. Homeschool parents, you can use these too. Free Printable Oceanography, Sea Creatures Worksheets