This product is everything you need to deliver mastery in Next Generation Science 5-ESS2: Earth's Systems. It has 36 no prep pages. It includes the geosphere, biosphere, hydrosphere, and atmosphere with easy to prepare corresponding labs for each sphere. Effects of how changes in one sphere causes reactions in the others is presented with concrete examples. Finally, the distribution of water on the earth and its effects is examined in detail. It is the perfect companion unit to the Core Rigor product, 5-ESS3: Earth and Human Activity.