Collection of two short descriptions of chemical principles seen in life situations: the autocatalytic reaction seen in the bombardier beetle, and molecular potential energy used for quick roasting of beef. Brief reference is also made to methanol lighters. (PS)

Illustrates that the knowledge of crystal structure, particularly face centered cubic array, can be applied to an explanation of how a solid fuel nuclear reactor works. (MLH)

Presents an approach to the understanding of gas laws using such common phenomena as insect fogging, sea breezes, and hot air balloons. (GS)

Two topics are discussed: (1) Stomach Upset Caused by Aspirin, illustrating principles of acid-base equilibrium and solubility; (2) Physical Chemistry of the Drinking Duck, illustrating principles of phase equilibria and thermodynamics. (DF)

Discusses the phsico-chemical principles underlying fish gas bubble disease and the methods of treating supersaturated water. (CC)

Suggests ways in which the "drinking duck," a seemingly self-propelled duck toy, can be used to illustrate the principles of phase equilibria and thermodynamics. (MLH)