Need an engaging way to introduce thermal energy? This resource is perfect. It will take a whole class period. No prep and perfect for sub plans if needed. I use this resource to introduce the important vocabulary to my students regarding thermal energy such as: Thermal energyHeatThermal ExpansionThermal Equilibrium ConductionConvectionRadiationConductor InsulatorSpecific HeatTemperature Each task card has a thorough definition to describe what each definition is. You can use this activity as a