This kit provides dozens of special cardboard pieces, wooden dowels string, wheels, etc. for making simple machines (inclined planes, scales, etc.) that can be used for understanding basic concepts of mechanics – how things work. Based upon the bestselling "The Way Things Work" by David Macaulay, the kit continues the theme of Wooly Mammoths as props and characters for use in these experiments.

Interesting and informative stories of the strange but fascinating behavior of various types of insects. The pictures are of the somewhat cheezy 60s variety, but the text is quite good and written at approximately a second grade level.

A nicely illustrated and interesting look at the amazing phenomenon of bird migration, what we know about how migration works and some various theories about details that are still being studied. Includes a chart of how high various birds fly.

The development of apples is presented, from leaf and flower buds in the winter, thru blossoms in the spring, pollination and the actual growth of the apple. In addition to beautiful scenic pictures of trees in blossom and bees pollinating the trees, there are more technical drawings which illustrate the parts of a flower, show flowers in the different stages of development and show the connections between the original blossom and the ripe apple. The text also introduces some important terminology that will be useful in later science studies (pollen, stamen, pistil, etc.).