There was a time when doctors couldn't see inside your body to find out what was wrong with you. When X-rays were discovered the world changed forever. Find out what the other top nine Scientific Discoveries are that Changed the World!

This is volume 9 in Top Ten .

This book is aimed at children in primary school.

There are 32 pages in this book. This book was published 2011 by Hachette Children's Group .

Chris Oxlade is an experienced writer of children's non-fiction and specialises in scientific subjects.

This book has the following chapters: Introduction The Solar System Gravity Vaccination Electromagnetism Pasteurisation Antiseptics X-rays Penicillin Nuclear Power The Secret of Life The Best of the Rest Timeline Glossary Index