This book covers all aspects of cetacean life and biology, including relative size, bones, survival, hunting and feeding, intelligence, sounds and song, breeding, swimming, migration, conservation, and much more. It has special focus features take an in-depth look at particular aspects of the species, such as a bottlenose dolphin giving birth or a humpback whale filter-feeding. It is packed with amazing wildlife images from some of the world's top natural history photographers. Detailed cross-sections and diagrams reveal the complex inner workings of a whale's body. It is an ideal reference guide for use at home or school for 8- to 12-year-olds. Whales and dolphins are our closest living relatives in the underwater world. This comprehensive guide offers an incredible insight into the exciting lives of these mysterious mammals. You can learn how to tell the difference between whales and dolphins. You can discover what whales and dolphins eat, why certain species feed co-operatively, and why many of the largest whales filter and skim water for their food. Exciting feature spreads allow you to observe detailed and dramatic aspects of whale life, such as a killer whale attacking a seal for food.

This title comes with 20 projects and more than 260 pictures. You can explore the murky and mysterious ocean depths, the sweeping tides and currents, icy Polar waters and warm, bright coral reefs with this fascinating fact file and learn-it-yourself book. You can discover the diversity of life in the sea - deadly sharks, dazzling fish and microscopic plankton. 20 amazing projects and experiments investigate the secrets of the sea - make waves in a tank, construct a rock-pool viewer, and build a sea-bird hide. Over 260 images include step-by-step photographs and explanatory illustrations. It is ideal for home or school use for 8- to 12-year-olds. More than 70 per cent of the Earth's surface is covered by water, forming a huge global sea. If you tasted the sea water, you would find that it was very salty, unlike the fresh water in rivers and lakes. The sea has many fascinating rhythms as its tides flow in and out, and it is teeming with life, from tiny single-celled creatures to gigantic whales. You can start discovering the wonders of the sea whenever you visit the coast - and by reading this exciting information and project book! Mix your own seawater and test its saltiness with a homemade hydrometer. You can create a replica of a submarine periscope, and use an ordinary glass to simulate how a diving bell works. Photographs and diagrams clearly explain the experiments and illustrate the scientific principles behind them, so young readers will want to dive straight in and find out all about the sea for themselves.

This title helps you learn what makes weather happen - from the deadly threat of a hurricane to a rainbow's delicate play of light. It features over 250 amazing photographs and illustrations that capture the devastation caused by a severe flood, the split-second flash of lightning, and much more. You can see how people, plants and animals cope with searing heat and bitter cold. To make learning even more exciting, there are lots of simple experiments that you can do, such as testing air pressure, creating static electricity, and making your own weather station. It is a stimulating reference for 8- to 12-year-olds to use at home or school. You can discover the catastrophic combination of circumstances that give twisters the power to suck up houses into their deadly vortex, and the forces of nature that create the exquisite structure of a snowflake. You can visit the hottest, wettest and coldest places on the planet - where the ground gets so dry that it cracks, or where ice storms cause electricity pylons to crash to the ground. Dramatic photographs team up with lively and informative text to explore and explain the workings of weather from different climates all around the world.