This 25 term matching learning activity worksheet will help your AP Environmental Science students to learn terms associated with matter, energy, and life. Terms include: carnivores, food chain, conservation of matter, energy, decomposer, acids, cellular respiration, ecology, carbon sinks, aerobic respiration, nitrification, population, entropy, biomass, and other relevant terms. Can be used as a pretest, warm up, classwork assignment, quiz, or review. Answer key provided. Check out my BUNDL