BBC Invisible Worlds
Episode 3 - Off The Scale Worksheet

The BBC Invisible Worlds series takes a look some of the forces and living things that we cannot see. This episode focuses more on the structure of some of these microscopic life forms. Examples include the tiny mites living on a piece of cheese, or the incredible amount of distance that droplets from a sneeze can spread through a subway car.

Essential concepts: Van der Waals interactions, nanotechnology, bacteria, disease, plankton.