Churchill, E. Richard

Presents more than sixty optical illusions that include tricks, drawings, and toys that can be assembled.

Presents a variety of activities, projects, and experiments that help to illustrate and explain all sorts of scientific principles.

A discussion of holidays in the United States accompanied by jokes and riddles appropriate to each holiday.

More than sixty simple physics experiments that can safely be done with materials around the house.

An illustrated compilation of paper projects, including paper airplanes, paperweights, and Christmas decorations.

Presents more than sixty optical illusions that include tricks, drawings, and toys that can be assembled.

Includes thirty designs to make from folded paper including spinners, whirlybirds, boomerangs, kites, and noise-makers.

Describes how to make and fly paper airplanes, using a variety of different designs.

Explains the basic principles of flight and gives folding instructions for twenty-nine airplanes.