Includes webography.

Includes index.

"This book introduces readers to the science behind salt water. Students learn about erosion and evaporation, two processes that contribute to the ocean's salinity. Vivid photographs and easy-to-read text aid comprehension for early readers. QR Codes in the book give readers access to book-specific resources to further their learning. Aligned to Common Core Standards and correlated to state standards.." -- Provided by publisher.

Oceans -- Water power -- Evaporation -- Salinity.