100 Facts Planet Earth encourages children aged 7+ to discover how ice can break open rocks, why deserts are cold at night, and what happens during an earthquake. Covering a wide range of topics from Earth's beginning to amazing natural features, exactly 100 numbered facts will challenge children, acting as an incentive as they make their way through the ebook. Packed with beautiful artwork and photographs, and featuring fun panels containing activities, quizzes and hilarious cartoons, 100 Facts is the perfect introduction to this fascinating topic.