All those lectures on tiny invisible atoms, molecules and enzymes. What can't be seen is difficult for many students to grasp. They help students see for themselves how tiny particles behave at the atomic level.
Students can peer into a color-coated molecule, spin it around and see it from a new perspective.
They can measure the distance from one atom to another. They can slice through a complex enzyme, layer by layer, to find out what makes it tick. They can even see the world from the perspective of a water molecule. All with the click of a mouse. Live visuals are very important in helping students make real-world connections.