A variety of demonstrations help to illustrate these concepts. Barometer, Boyle's Law, and Bernoulli's principle are also discussed. Temperature and heat are distinguished from each other. The expansion of solids, liquids, and gases is compared. A discussion on specific heat capacity leads to the physics of a freezing lake.
Demonstrations using liquid nitrogen show the effects of low temperatures.
Convection is shown with a pressure cooker. Radiation is related to Newton's law of cooling. The temperature dependence of radiation frequencies are related to the greenhouse effect. The way in which sunlight spreads differently over parts of the earth helps explain the warmth of the equatorial regions and coolness of polar regions. The concepts of evaporation and condensation are contrasted.