The document is a lesson plan for a 4th grade science class on the water cycle. It includes 10 sections with links to online resources and questions for students to answer. The questions cover topics like the states of water, aquatic biomes, evaporation, condensation, precipitation, aquifers, cloud formation, and statistics from NASA on the water present on Earth and in the oceans. The lesson aims to teach students about how water moves and changes forms between oceans, air, land, and underground as it circulates through the water cycle.