Description
Study the effects of friction using a board of 4 different surface materials: cork, rubber, sandpaper, and Masonite®. Includes surface board, hooks, and wooden blocks. Wooden blocks measure 2-1/2 x 2 x 1/2″. Instructions included.
Study the effects of friction using a board of 4 different surface materials: cork, rubber, sandpaper, and Masonite®. Includes surface board, hooks, and wooden blocks. Wooden blocks measure 2-1/2 x 2 x 1/2″. Instructions included.