The wonders of technology and the Web make it possible for your class to explore the miracles of the human body in lots of creative and fun ways. Why not get right to the heart of the matter? Take your class on an online exploration of the heart, where they can follow the blood through blood vessels and learn what keeps hearts healthy.

Scientists look through microscopes to discover more about the body's intricate structure. Your students can peer at such images by looking at microscopic specimens of hair and blood cells at the Nanoworld Image Gallery.

Add to the wonders of the body's design its ability to fend off disease and infection. This battle goes on at the cell level, beyond what the eye can see, but videos and photos at CELLS Alive! show how cells "talk" to each other to keep the body healthy.