From frozen deserts to steaming jungles, our planet is amazingly rich and varied. But it is also under threat. Take a closer look at the challenges facing planet Earth today and discover what we can all do to make a difference.

A book that contains descriptions of websites you can visit to take you further into the subject in an entertaining and informative way, however you do not have to have a computer to use this book. This encyclopedia works on its own as an outstanding reference book without using the Internet at all.

What if we could open up our planet and look inside? From its red-hot core to the highest mountain peak, come see Earth as you've never seen it before in a colorful introduction to the powerful forces shaping our home.

A dynamic and comprehensive introduction to physical geography, which explores our world's most dramatic features. Clear photographs and graphic illustrations help children to explore the structure of the earth. Internet-linked to help readers build on their knowledge by accessing relevant websites.

Take a detailed look at how things work with this series. Highly detailed, realistic artwork is presented with cutaways and exploded views to help children understand each idea. Clear text accompanies each topic.