Looking for a fun way to teach your 2nd and 3rd grade students all about the water cycle and weather? Your students will love the hands-on activities in this engaging science unit! This 2nd and 3rd grade science unit focuses on the water cycle with activities, labs, vocabulary words, and fun projects.The water cycle is the process of how water moves from the ground and bodies of water up into the sky as water vapor, and then back down to Earth as precipitation. In this unit, you will learn abou