20m Fiberglass Tape Measure with PVC Cover and Winding Handle Type_Tall Form Sodium chloride lattice kit with

Sodium chloride lattice kit with 27 color-coded gray and green atoms plus 54 connectors for building the full cubic NaCl crystal structure in three dimensions

Seventeen-and-a-half-inch wooden simple-lever apparatus with an adjustable fulcrum on an 8

75-inch metal bell in a plastic shroud

this handle-fitted bicycle wheel lets students feel torque resistance in a spinning mass

Jumbo three-dimensional frog dissection model with keycard demonstrates amphibian anatomy and organ systems for detailed vertebrate teaching

20m Fiberglass Tape Measure with PVC Cover and Winding Handle Type_Tall Form Sodium chloride lattice kit withFor field surveys, outdoor physics activities, and long distance laboratory exercises, this twenty meter fiberglass tape measure carries a non conductive waterproof PVC coating.