Embark upon a voyage of discovery and learn about waves, wind, and water with this fun and informative exploration of the ocean, 30 seconds at a time. With colorful artwork, readers will delight in the 30 fast and fascinating topics of life in the depths of the sea. The 30 Seconds series takes readers on a journey of discovery through a wide range of fascinating subjects. Each topic is presented with a quick 30-second soundbite, supported by flash summaries and full-color artwork. Fun, interactive missions with things to make or do support the topics, encouraging readers to test, explore, and discover even more.