Barnaby Newbolt

Thousands of years ago, people looked out across an ocean and asked themselves, 'What is on the other side?' And the bravest of them began to travel and find the answers - beautiful islands, frozen lands, different peoples . . . And there are still interesting questions about the oceans. How do they change our weather? Why does the water go up and down twice a day? Why do most animals and plants live near the land? And what can possibly live at the bottom of the ocean, thousands of metres down, where there is no light? Surely nothing can stay alive in a place like that ..

''Factfiles'' are a sub-series of ''Bookworms'' with a non-fiction angle providing factual information for students on a wide variety of themes. Exercises at the back of each book check students'' understanding of the text and provide ideas for activities and project work.

A non-fiction book, ideal for pre-intermediate and intermediate learners of English looking to improve and practise their English. The book is filled with useful vocabulary that is carefully graded and easy to understand, it also comes with audio, so that you can listen at the same time as reading.What are the most beautiful, the most interesting, the most wonderful things in the world? The Great Pyramid, the Great Wall of China, the Panama Canal - everyone has their favourites. And there are natural wonders too - Mount Everest, Niagara Falls, and the Northern Lights, for example.Here is one person's choice of eleven wonders. Some of them are made by people, and others are natural. Come and discover new wonders ...