All About Life Cycles is a Science unit designed to introduce life cycles to students in grades 2-4. This unit includes an overview about life cycles, metamorphosis, and heredity, and 8 individual life cycles! This unit introduces one life cycle for each main classification of living thing (plant, mammal, fish, insect (complete and incomplete metamorphosis), bird, and amphibian).Each topic has a special foldable informational booklet. Each booklet has a special pocket that can be used to hold th