Contains:
Sink or Float data sheet (2), Sink or Float activity guide (2), rubber duck (1), bouncy ball (1), styrofoam ball (1), counting block (1), shell (1), piece of coral (1), rock with fossils in it (1), buttons (2), plastic zebra (1), wooden block (1), cork (2), film canister (2), Sciencenter Comeback Pass (1) Missing: rock with fossil, counting block, 1 button