Scientists and historians have discovered a lot about our past, our future and how the world works, but SO MUCH remains unknown. 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? This exciting book explores the edges of human knowledge and the vast world of science just waiting to be uncovered.

 

 

This book is part of a book series called 100 Things To Know .

This book has been graded for interest at 8-11 years.

There are 128 pages in this book. This book was published in 2023 by Usborne Publishing Ltd .

Caitlin Friedman is the author of The Girl's Guide series and other books. She lives with her husband and two children in Brooklyn, New York. Shaw Nielsen was educated in San Francisco at the Academy of Art and currently resides in Denver.