There are 5 kingdoms that classify living things: animals, plants, fungi, algae, and bacteria. Animals can move and eat other living things, while plants make their own food but cannot move. Fungi eat other living things and include yeasts, molds, and mushrooms, which can be uni- or multicellular. Algae are similar to plants in that they produce their own food. Bacteria are very small and unicellular, and can be beneficial or cause illness. The document provides information about characteristics of each kingdom and sample activities for classifying organisms.