Virtual experiments are a new way of doing experiments. A visible difference between virtual and real experiments is the interaction mode. Such a difference causes unfamiliarity and induces unnecessary cognitive load and inefficiency during learning. The objective of the research is to reduce the interactive operation difference between virtual and real experiments as much as possible. TIPTAB, a tangible interactive projection tabletop, is proposed for virtual experiments. A depth camera is used to detect tangible objects in the real environment. These objects are printed by three-dimensional (3D) printers in advance and tracked in real-time. The tracked 3D poses are then used as inputs for further experiments. Both object textures and scene contents are augmented by