Description
the heaviest metal option alongside brass
and funnel
Rod-mounted plastic ball-bearing pulley with a 50mm wheel on a 150 by 10mm rod
this galvanic skin response data-logging sensor tracks changes in skin conductivity tied to emotional and physiological states
Real Coal Specimen with Cotton Bag, Large Lump Included_Rod & Base the heaviest metal option alongsidePart 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
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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