This example calculates the reduction in total calories and calories from fat when applesauce is substituted for oil in a cake recipe.

It is quite common for people to believe that summer is warmer than winter,
basing the explanation on the belief that Earth is closer to the Sun during the
summer than in the winter. Even a sizable fraction of Harvard graduates carry
this belief (Schneps, 1987, mentioned in Green, 2003). In reality, this is exactly
opposite the situation in the northern hemisphere. The separation of Earth and
Sun is greatest at the beginning of July and least at the beginning of January.
More direct sunlight and the greater duration of daytime in summer months

The common plastic water bottle makes a useful container for demonstrating properties of gases and liquids. As typical examples, we know that "air" is a gas (made up of nitrogen, oxygen, water vapor, ozone, carbon dioxide, and several "trace" gases) and water is a liquid. We should also note that gases and liquids are both "fluids". That is, they can flow or change shape, rather than having a fixed shape like a solid.

A lawyer's use of some very simple science and math. The facts are true, although simplified; the company names have been changed.

Acme Enameling Company operated a cast-iron foundry and enameling plant, where it made bathtubs and sinks for twenty-seven years. It dumped factory wastes on vacant property behind the plant. Zenith Construction Company then bought the property and used it as a construction waste landfill.