This lecture-packed show compares a balloon to a bunch of angry wasps to explain why gases expand and contract. It goes further than that. The expansion process also affects matter when it changes from one state to another.
The Inclined Plane
The Lever
Mechanical Advantage and Friction
The Screw and the Wheel
The Pulley
Molecules in Solids
Molecules in Liquids
Evaporation and Condensation
Expansion and Contraction
Measuring Temperature
Temperature vs. Heat
Atoms
Electrons
Conduction
Volume and Density
Buoyancy
Convection
Heat as Energy
Radiation Waves
The Radiation Spectrum