This document provides directions for a biome tic tac toe activity involving choosing three activities in a row to complete. The activities include applying knowledge of biomes to graphs, justifying which ocean zone can support plankton growth, creating a concept map of biome terms, planning supplies needed to camp in a biome for a year, identifying and describing 7 land biomes, hypothesizing what would happen if a wetland dries out, deciding if savannas and deserts are one biome based on evidence, imagining being a scientist studying a biome with given climate details and identifying plants, animals and winter preparations, and identifying adaptations for organisms in tundras, deserts or grasslands.