Created by SPI, last updated 2015-11-13 The Crayon Rock Cycle Details Digging Into the Past Details Cookie Subduction Details Edible Earth Details The Ability of Permeability Details The Squeeze Box Details The Dirt on Dirt Details A Hole in the Ground Details The Rain Man Details Measuring Wind Speed Details Milli's Super Sorting Challenge Details Water "Digs" It! Details Weather Vane Details