• KELVIN® Classroom Hydroponics System™

    KELVIN® Classroom Hydroponics System™

    Food in the Desert or Antarctica Project for Your Class (Grades 4-12). Hydroponics technology makes it possible for people all over the world to have access to fresh crops in controlled environmen ts even if they don't have good soil. Explore these...

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  • Rockwool Cubes

    Rockwool Cubes

    Rockwool growing medium can hold large amounts of nutrient solution and air for the best growth. Does not decompose. 1-1/2 x 1-1/2 in. cubes. 98/pkg.

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