Quantum computers are at the forefront of computing; however, few people understand how they work and their capabilities. We present two versions of an interactive activity designed for high school students (ages 13 to 18) that introduce a core quantum concept--"entanglement." The first version illustrates a simple connection between two particles, and the second explores different ways that two particles could be entangled. This activity works well for entry-level quantum computing learning and requires minimal materials.