In recent years, VR has been rated as one of the most important technologies which are expected to re-shape our socio-cultural life in the near future because it has a wide diversity of impressive and practical applications such as 3D medical imaging, product and architectural design, visualization of complex scientific data, molecular/crystal modeling, games/entertainment, training and education. With the rapid advancement in 3D and computer technologies, VR has become much more user-friendly and affordable in prices and so it will likely be incorporated as a part of the IT environment in local schools within a few years. Why do we advocate the use of VR technologies in university science degree programs? Based on our professional experience in teaching various subject areas, we have uncovered and identified many topics containing at least one of the following special characteristics/ features which are well-known to cause obstacles/difficulties to learning in many students.:

• Misconception (or called alternative conception), misinterpretation or misunderstanding are easily resulted when the 3D objects (e.g. magnetic/electric field pattern, multi-dimensional mathematical functions, 3D geometry, product design or sculpture) are made in flat 2D projection (or monoscopic images which lack the depth clues) or in 3D material models (e.g. bonding misconception inherent with the sticks used in molecule or crystal models).
• Certain experiments, practices or demonstrations are less favorable for carrying out in real-life because they are either embedded with potential hazards or bioethical implications (e.g. dissection of human body or other living organisms) or too expensive in acquiring the necessary equipment.
• The processes or phenomena are almost impossible to observe or control in the real world situation because of the spatial (e.g. viewing and navigation around the Solar system) or temporal constraints (e.g. particle/atomic motion/interaction in the microscopic scale).
• VR can more effectively stimulate the students' interest of learning science and provide the sort of interactivity to facilitate the students' deep level of learning as they can freely explore or observe in detail on what are in doubt.