Make a Water Cycle Model

Overview

Earth is a planet full of water. 70% of its surface is covered with water in oceans, lakes, rivers, and more. Water on our planet can also be found in the atmosphere and underground. In this lesson, students will explore how water is continually cycled among land, the oceans, and the atmosphere. As students build a physical model of the water cycle, they will be able to simulate and observe evaporation, condensation, precipitation, and other water cycle processes in real-time.

Remote learning: This lesson plan can be adapted to work remotely. The Engage section of the lesson can be done over a video call. Students will need to do their water cycle model experiment individually and independently during the Explore section using the Student Worksheet as a guide and can then share their observations with each other, virtually. A set of materials can be prepared in advance or students can use materials found around the house. End the lesson with a discussion over a video call during the Reflect section.

NGSS Alignment

• MS-ESS2-4. Develop a model to describe the cycling of water through Earth's systems driven by energy from the sun and the force of gravity.

Materials

For educator and each student group of 3–5:

• Transparent plastic box with transparent lid, such as a plastic storage or shoe box.
• A rock or stone with a diameter of about 3–4 in.; alternatively, modeling clay can be used to shape a mountain.
• Natural sand or soil, about 2 cups
• Water, about 500 mL. Note: You will be able to see evaporation happening more quickly if you use warm or room-temperature water.
• Heat lamp or a lamp with an incandescent light bulb
• Ice cubes, 1 cup. It might be good to have extra ice cubes on hand in case they melt too quickly and students need to replace them.
• Re-sealable plastic bags, snack-size (2)
• Timer or clock
• Scissors (for educator only)