Feature: 1. Water Purification: This clean water experiment kit can purify turbid water into transparent and clean water. Kids can observe the filtering process of different substances, feel the origin of clean water, and experience unexpected surprises. 2. Scientific Knowledge: This clean water science kit encourages kids to explore the origin of "clean water" so that they can learn scientific knowledge of water and cultivate environmental awareness during the experiment. 3. Easy Assembly: These clean water experiment accessories can be easily assembled, effectively improving and cultivating students' practical ability and thinking ability. 4. Wide Application: This water purification system toy is very suitable for physics classrooms in primary, middle and high schools,so that kids can master knowledge and play. Perfect for young science enthusiasts, especially those with an interest in chemistry and the environment. 5. Perfect Gift: This water science toy is ideal gift to your family or friends. Science educational kit for kids aged 4 to 14. Small kids should play with parent or adults together. Specification: Item Type: Clean Water Experiment Kit Material: Plastic Application: Kids Can Explore The Origin of "Clean Water" So That They Can Learn Scientific Knowledge of Water and Cultivate Environmental Awareness During The Experiment. Package List: 1 x Bag of Crushed Moorstone1 x Bag of Porcelain Sand1 x Bag of Activated Carbon1 x Bag of Quartz Sand1 x Bag of Saleratus1 x Bag of Pottasium Alum6 x Filter Paper2 x Sponge1 x Plastic Funnel4 x Filtration Tube1 x Plastic Cover1 x Plastic Cup1 x User Manual