About Item
Size：as picture(approx)
Weight：328g(approx)
Style：as shown
Pack：1pc
Product description： 
This unique kit contains many interesting water purification experiments. Learn the science of cleaning and reusing sewage and help protect the environment. This is a very cool water science experiment kit. 
Age:
8 years old or older 
What do you get：
Green Science Clean Water Science Kit. 
Kit content:
1 pack of Huanggang stones 1 pack of porcelain sand 1 pack of activated carbon 1 pack of quartz sand 1 pack of baking soda 1 pack of potassium alum 6 sheets of filter paper 2 pieces of sponge 1 filter device 1 manual. 
Note: 
1. This kit is not suitable for drinking filtered water equipment. 
2. Do not drink water for experimentation. 
3. Some experiments involve hot water. Adult supervision is required. 
Teach Warning:
suffocating dangerous small parts. Not suitable for children under 3 years old. Buy him and let your child enjoy the charm of science