DR TIM EVANS / SCIENCE PHOTO LIBRARY DR TIM EVANS / SCIENCE PHOTO LIBRARY
Water molecules. Computer artwork of molecules of water (H2O). Atoms are represented as rods and are colour-coded; hydrogen (white) and oxygen (red). The molecules are linked by hydrogen bonds (yellow). Water is essential to all life forms on Earth and covers about 70% of the Earth's surface.
Model release not required. Property release not required.