What was it like to imagine the nature of the atom? The Think Tube: A Black-Box Demonstration—ChemTopic™ Lab Activity allows students to appreciate the challenges of understanding things we can’t see as the instructor performs a series of simple manipulations and students record their observations to develop a working hypothesis for its structure. Available as part of the Atomic and Electron Structure—ChemTopic™ Labs digital collection. Click the Price link for digital collection pricing.