US$ 26.99
This kit comes with 2 geared motors
Two 0 ~ 30V
high frequency response
it also offers temperature
SciEd Porosity of Soils and Water Flow Kit This kit comes with 2AN EASY TO UNDERSTAND PRIMER ON GROUNDWATER construct models to test the porosity and permeability of various soils. measure the rate of waterflow for each type of soil and use their observations to gain a better understanding of surface runoff, watersheds, groundwater formation and movement, and aquifers. AN EASY TO UNDERSTAND PRIMER ON GROUNDWATER Your class will construct models to test the porosity and permeability of various soils. The students