A molecular modeling kit including a three-dimensional body providing a physical representation of at least one atom. The three-dimensional body can define a cavity and include a self-reorienting magnet at least partially disposed in the cavity. The magnet can be configured to realign relative to the cavity when in proximity with a second magnet such that magnetic poles of the self-reorienting magnet and the second magnet are aligned for attraction. The second magnet can be external to the three-dimensional body.