Introduce the geography theme of human-environmental interaction. Give each group a game board with definitions and an envelope with cut-up vocabulary words. The objective of the game is to correctly match-up the vocabulary words with the corresponding definitions.
Students raise hands when they think they have the correct answers.
The first team with all the correct answers wins the game. Divide the class into groups of 4-5 students. Review soils used in construction of the model. Pass out water bottles and explain that the water represents rainfall. Remind students to observe carefully.