Iron weighs more after it rusts.
16
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
German chemists made a replica of a trophy the size of one molecule.
68
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Scientists aren't sure what color dinosaurs were.
312
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7