Based on the idea that active participation stimulates the processes by which learning takes place, this document provides teachers and students with a variety of information and learning activities that deal with plants and animals in nature. Basic concepts are presented through the use of laboratory experiments, worksheet exercises, diagrams, and individual and group activities. The materials focus on: (1) microscopic organisms; (2) sponges; (3) the life cycle of a tapeworm; (4) insects and insect pests; (5) brine shrimp; (6) fish; (7) snakes; (8) the similarities between bones and eggshells; (9) birds; (10) protection coloration; (11) whales; (12) biological communities; (13) flowers and fruits; (14) seeds; (15) the art of drying flowers; and (16) plant dyes. Included are reproducible handouts, quizzes, and an answer key. (TW)