Penicillin was discovered by accident / Payne, Jan

"Science has helped us understand our ever-changing world much better. Some of the facts in this book are true, while others are false. Can you tell which is which? Find out by taking the quizzes in this book, and discover the truth about some of the greatest scientific breakthroughs in history!"--Back cover.

Readers learn about some of the curious and odd things that can happen when discoveries are made.