Replacement Sand For TCTN01, 1 Each

Replacement Sand for the Tectonics Model Set by United Scientific is a refill for the sand used in the kit's Tectonics Sand Layer Model. Teachers use it to rebuild layered sand sequences after demonstrations of folding, faulting, mountain building and subduction, or when colors have mixed after repeated runs. Sold individually, it keeps earth science classroom kits ready for every section and every term.