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A Drop of Water's Journey

Children's Playground

★Exhibit Content: Water Cycle ★Interaction: Electromechanical Interaction ★Operation: Visitors press the start button and observe the trajectory of the falling balls to learn about the water cycle. ★Exhibit Description: The exhibit consists of a motorized ball lifting mechanism, multiple physical motion tracks, a graphic light box back panel, and a transparent protective panel. When visitors press the start button, the motorized mechanism moves the balls from the bottom to the top. Under gravity, the balls roll down along the tracks, passing through different path nodes. The graphics on the back panel explain the water cycle in nature. The ball tracks simulate multiple water cycle paths. The balls are lifted from low to high by the motorized mechanism, and then descend from the top of the tracks via 7 different paths. Phenomena such as centrifugal motion, spiral motion, and projectile motion can be observed, corresponding to different stages of the natural water cycle, transforming the abstract water cycle process into an intuitive and visual ball movement demonstration. ★Scientific Principle: The process of water cooling and condensing at high altitudes is called the water cycle, which mainly includes evaporation, condensation, precipitation, runoff, and infiltration. Sunlight heats water bodies such as oceans and lakes, causing water to evaporate into water vapor and enter the atmosphere; plants release water vapor through transpiration. Water vapor cools and condenses at high altitudes to form clouds, which then precipitate to the ground as rain, snow, etc. Part of the precipitation forms surface runoff, flowing into rivers, lakes, or oceans; part infiltrates into the ground, becoming groundwater. Groundwater eventually returns to the surface or water bodies through flow, continuing to evaporate or transpire, forming a cycle. The water cycle maintains the Earth's water resource balance and supports ecosystems and human life.

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Principle Display: ★★★★ Interaction Effect: ★★★ Ease of Installation: ★★★★★ Durability: ★★★★ Overall Rating: ★★★★

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