Gotta love the ole USA:

American adults in general do not understand what molecules are (other than that they are really small). Fewer than a third can identify DNA as a key to heredity. Only about 10 percent know what radiation is. One adult American in five thinks the Sun revolves around the Earth, an idea science had abandoned by the 17th century.

Yes, you read that correctly. One in five Americans think that the Sun revolves around the Earth.

Good lord.

Science/Environment America's Love Affair With Science