Book excerpt: Wide ranging introduction to the history and culture of ancient Egypt. 100 Things You Should Know series presents a collection of facts about medieval knights and their way of life, the castles in which they lived, and the society of which they were a prominent part, and offers quizzes and instructions for making related projects. It offers a wide ranging introduction to the history and culture of ancient Egypt. The series opens up to children the fascinating world of science. Children will gain a valuable appreciation of the basics of science and its impact on their world, as well as seeing science at work firsthand, in simple experiments and activities. Detailed artwork illustrates more complex topics, helping children to absorb information with ease. Exactly 100 numbered facts will challenge children, acting as an incentive as they make their way through each book, while hilarious facts and brilliantly drawn cartoons add an extra element of fun. Add a detailed index, and 100 Things You Should Know has all the ingredients for a perfect introduction to the key scientific subjects.