Ever wondered how the roots of a plan can grow through solid rock? Or what life is like on the surface of Venus? Maybe you want to know how long it takes a drop of blood to travel around your body or how a solar power plant works? No matter the question, the Big Book of Knowledge has the answer.

Packed with incredible images that show you what others only tell you, this children's book is the perfect resource for curious kids of all ages.

When you have this much information at your fingertips, homework will be a breeze!

This book is part of a book series called Big Books Of .

This book has been graded for interest at 9-12 years.

There are 480 pages in this book. This is an encyclopedia. An encyclopedia is a book or numbered set of books containing authoritative summary information about a variety of topics in the form of short essays, usually arranged alphabetically by headword or classified in some manner. An entry may be signed or unsigned, with or without illustration or a list of references for further reading. Headwords and text are usually revised periodically for publication in a new edition. In a multivolume encyclopedia, any indexes are usually located at the end of the last volume. Encyclopedias may be general (example: Encyclopedia Americana) or specialized, usually by subject (Encyclopedia of Bad Taste) or discipline (Encyclopedia of Social Work). This book was published 2019 by Dorling Kindersley Ltd .