Describes the metamorphoses of a caterpillar into a butterfly, with ideas for exploration of the scientific process through projects and experiments, illustrations, and a glossary.
Describes how a baby chicken hatches out of an egg and grows into an adult, with ideas for exploration of the scientific process through projects and experiments, illustrations, and a glossary.
Follows the development of a large old maple tree from its growth from a seed during the American Revolution to its maturity in the late twentieth century.
