100 Things to Know About the Unknown: A fact book for kids [Hardcover]

What is dark matter? How fast could a T. rex run? How did Mary Queen of Scots keep her dying wishes secret from her enemies?

Scientists and historians have discovered a lot about our past, our future and how the world works, butSO MUCH remains unknown. This exciting information bookfilled with 100 fascinating and mind-blowing factsexplores the edges of human knowledge and the vast world of science just waiting to be uncovered.

Witheleven books to explore inthis best-selling and award-winningseries, there are over 1,100 facts to discover. Packed with bold, graphic illustrations and clear text, the series is perfect for dipping in and out of, and for sharing with family and friends.