This color-by-number activity is perfect for reviewing the ecology and ecosystems vocabulary words with your students! They will answer 15 questions and then they will color the corresponding parts of a fun rainforest coloring page. The key terms covered in this ecology color-by-number worksheet are biosphere, ecosystem, biotic/abiotic factors, food web, energy pyramid, competition, producers, consumers, scavengers, decomposers, parasite, population, biodiversity, sustainability, and ecological