Describes why germs should not be spread.

Your mouth contains more bacteria than a dog's. Money is covered with germs that can make you sick. The germs in a sneeze travel only an arm's length. You may have heard these common sayings or beliefs before. But are they really true? Can they be proven through research? Let's investigate seventeen statements about the microscopic world and find out which ones are right, which ones are wrong, and which ones stump even the experts! Find out whether...

After Keesha discovers mold on her sandwich, Ms. Frizzle and the class embark on an adventure into the mini-microbe world where they discover that these tiny creatures have big effects.

Bill Nye the Science Guy magnifies the big science behind tiny germs. By exploring the science of health and germs, Bill shows students how hand-washing, eating nutritious food, and getting enough exercise and sleep can help the human body fight illness. The Science Guy demonstrates that taking care of the body isn't just important to health and well-being, it's also Safety Smart!

Food technology affects every aspect of food production and the relationship humans have with food. This book examines the fundamental questions surrounding the issue of how we prepare and eat our food. What is food technology? How has buying and selling food changed? How big a problem is obesity? Who invented frozen foods?