US$ 12.90
and the structural elements of geological faults through a five-piece teaching model with an identification key
Rod-mounted plastic ball-bearing pulley with a 50mm wheel on a 150 by 10mm rod
Heavy-duty metal inspection quadrat divided into 25 equal squares
5-inch compact and 6-inch long-format units
Real Coal Specimen with Cotton Bag, Large Lump Included_Rod & Base and the structural elements ofPart novelty gift and part geology specimen, this single large lump of genuine American coal ships in a cotton drawstring bag with a linked science experiment activity.
US$ 12.90
US$ 38.95
US$ 34.95
US$ 17.90
US$ 21.90
US$ 39.90
US$ 39.90
US$ 14.90