Description
Five removable sections separate the enlarged ear into outer
this galvanic skin response data-logging sensor tracks changes in skin conductivity tied to emotional and physiological states
Seventeen-and-a-half-inch wooden simple-lever apparatus with an adjustable fulcrum on an 8
5-inch compact and 6-inch long-format units
Real Coal Specimen with Cotton Bag, Large Lump Included_Rod & Base Five removable sections separate thePart 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.
Exchange/Return Notes
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