Chinese Professional Colorful Cleaning sponge LS-6811 to Hanover Manufacturers

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Quality First,and Customer Supreme is our guideline to provide the best service to our customers.Nowadays, we are trying our best to become one of the best exporters in our field to meet customers more need for Chinese Professional Colorful Cleaning sponge LS-6811 to Hanover Manufacturers, We believe that a passionate, innovative and well-trained team will be able to establish good and mutually beneficial business relationships with you soon. Please feel free to contact us for more details.


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  • Construct your own sand water filter and learn about water filtration systems with this easy science project.

    http://www.hometrainingtools.com/water-purification-science-project/a/1803/

    List Of Items:
    1/2 L of swamp water (or tap water with mud or dirt added)
    2 L soda pop bottle with its lid
    2 L plastic soda pop bottle—one with its bottom cut off, the other with its top cut off (have an adult help with cutting)
    1000 ml beaker
    2 empty 20 oz cups
    1 tbsp of Alum (Aluminum potassium sulfate)
    2 cups of fine sand
    1 cup of coarse sand
    1 cup of small pebbles
    1 Coffee filter or Filter Paper
    1 rubber band
    1 Spoon (for scooping the Alum)
    1 Large spoon for stirring
    Stopwatch or timer

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