![]() In the Make a Miniature Water Cycle Model activity, students make a model of the water cycle in a plastic bag and use it to explore how water moves in and out of the atmosphere in a cycle of precipitation, evaporation, and condensation. ![]() Lesson Plans and Activities to Teach About the Water Cycle The System Activities are simplified explorations that can be used in the classroom or in informal learning environments. Lesson Plans offer NGSS alignment, contain background materials to boost teacher confidence, even in areas that may be new to them, and include supplemental resources like worksheets, videos, discussion questions, and assessment materials. Note: Science Buddies Lesson Plans contain materials to support educators leading hands-on STEM learning with students. The resources below have been grouped as follows: The free STEM lessons and activities below help students model and explore the water cycle, the various processes, the role landforms and water bodies play, and questions related to sustainability and the importance of water conservation. Amazingly, the water on Earth today is estimated to be more than a billion years old! (For more information to support introducing the water cycle, see the Teaching About the Water Cycle and the Future notes at the bottom of this resource.) ![]() As water moves between land, the oceans, and the atmosphere, the distribution of water (where it is located or in what state) is always changing, but the total amount of water on Earth stays approximately the same. In this process, water shifts between solid, liquid, and gaseous forms, occupying all three states of matter at varying times. Thanks to the natural hydrologic cycle (water cycle), water on Earth is continuously recycled. With more than 70% of Earth's surface covered in water, water is one of the planet's most abundant natural resources.
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