This is a educational book designed to help young readers to conduct scientific experiments. There are black and white illustrations of the experiments, as well as explanations of how they work. This book was originally published in 1960 in 4 volumes, as "Beginning Science with Mr. Wizard", covering the topics; Water, Heat, Light, and Flying. Later in 1968, these were combined into a single book, "Mr. Wizard's 400 Easy Experiments in Science", along with additional content and new illustrations. This 1968 version was reprinted several times afterward, but without additional information about when the later versions were released. The illustrator of the original four books was Mel Hunter, while the illustrator of the 1968 version is uncreated. The experiments are designed to be simple, such as looking into the bowl of a spoon, rubbing the teeth of a comb, blowing air around a bottle, others involve more complex things like nailing boards together, and building simple electronics.

Printing history;
Beginning Science with Mr. Wizard, Illustrated by Mel Hunter, Published by Doubleday & Company, Inc.
* Beginning Science with Mr. Wizard: Water
* Beginning Science with Mr. Wizard: Heat
* Beginning Science with Mr. Wizard: Llight
* Beginning Science with Mr. Wizard: Flying

"Beginning Science with Mr. Wizard: Water", was later reprinted as pages 13-16, in "Mr. Wizard's 400 Easy Experiments in Science", with new illustrations. The entirety of pages 7, and 32, and parts of pages 13, 20, 27, 32 were not included in the reprinted version.
"Beginning Science with Mr. Wizard: Heat", was later reprinted as pages 65-68, in "Mr. Wizard's 400 Easy Experiments in Science", with new illustrations. The entirety of pages 9, 15, 18, parts of pages 7, 11 were not included in the reprinted version.
"Beginning Science with Mr. Wizard: Light", was later reprinted as pages 57-60, in "Mr. Wizard's 400 Easy Experiments in Science", with new illustrations. The entirety of pages 29-32, and parts of pages 27, 28, were not included in the reprinted version.
"Beginning Science with Mr. Wizard: Flying", was later reprinted as pages 33-36, and in "Mr. Wizard's 400 Easy Experiments in Science", with new illustrations. Pages 26-30 were not included in the reprinted version.

Book-Lab, Inc. 1968 editions.
* Mr. Wizard's 400 Easy Experiments in Science {Blue cover, with illustration of rocket going from planet to moon}
* Mr. Wizard's 400 Easy Experiments in Science, "Soft Blue Bonnet Margarine Presents" {Photo cover of Don and child, looking at forks being balanced}
* Mr. Wizard's 400 Easy Experiments in Science {Cover has illustrated bearded wizard holding lightening bolt, with title of book} {ISBN: 0875940129, 9780875940120}