Alex Woolf

Do you know since when we have been adding salt to our food? And where it originally came from? Like many other foods, salt has a fascinating history, spanning centuries, continents and cultures. Wars have been fought over this food, empires conquered and black markets have flourished. Other topics covered are health aspects of salt, how it is produced, its chemical properties and how it is traded around the world. An ideal leisure read, but also...

Help your child to develop their growth mindset as they discover how real engineers look at the world and how they think. Children's brains are powerful and flexible, but they need exercising and challenging to develop. In this book they will uncover the core skills that can make a good engineer great, and be encouraged to have a go at some simple activities to help them to train their brain to become better at applying outstanding engineering practice....

Uses humor in both text and illustrations to describe the history of soap and why it is important.

Uses humor in both text and illustrations to describe the history of books and how important they have been to civilization.

Presents biographical information about militant Islamic leader Osama bin Laden, including his role in international terrorism and the beliefs that fuel his actions.

Discusses the development of formal education during the Middle Ages, describing various methods of education, types of schools, curricula, who went to school, the rise of higher education, and more.

Explains chemical accidents and describes the impact they have on human lives. Demonstrates the effects of a chemical accident using a chronological selection of historical and recent accidents such as Texas City and Guangxi, China. Includes primary source information and eyewitness accounts.