Three aerated compartments enable kids to view the entire decomposition process clearly and make side-by-side comparisons among different materials. A great way to teach decomposition, composting, life cycles, and environmental education. Includes...
Three aerated compartments enable kids to view the entire decomposition process clearly and make side-by-side comparisons among different materials. A great way to teach decomposition, composting, life cycles, and environmental education. Includes...