From the safety science company Underwriters Laboratories (UL) comes UL Xplorlabs: a free educational platform offering interactive, module-based learning experiences. Launched in 2016, UL Xplorlabs currently offers two multifaceted modules, each aligned with Next Generation Science Standards and focused on real-world topics. The first module, Portable Electric Power, "explores the science of lithium-ion batteries," while Fire Forensics: Claims and Evidence, introduces students to the basics of fire science and was nominated for a 2018 Webby Award. Modules include downloadable teacher guides, interactive videos and simulations, collaborative classroom activities, and extension activities. Educators may choose to do an entire module with their class or just part of it, and the modules can also be done by the students independently. While UL Xplorlabs' modules are designed for middle school students, STEM instructors at other levels may also find this resource's content helpful. The Xtensions section offers a number of experiments, resources, and challenges that educators may like to check out as well. New modules will be added as UL develops them, and those interested can subscribe to be notified of new content via email.