Plant Factory by P. Brown, G. Krelle & M. Tam, 123 pages, pap.
This comprehensive book uses hands-on growing and observing to introduce hydroponics to students. Lessons are designed separately for elementary, middle and high school levels. Includes 30 worksheets and transparencies
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Brand Hydrofarm SKU BKCLASS Weight 0.2200 Dimensions (L x W x H) N/A Price $32.65