Convection and Density in a Hot Air Balloon

Learn how hot air balloons take flight with this middle-grade worksheet about convection! To start, middle-grade scientists will read a passage about the workings of hot air balloons. Students will learn how the different densities of hot and cool air creates a convection current, a common example of thermal energy transfer. Then, learners must answer five written-response questions to test their comprehension of the material.  

This worksheet will help make abstract concepts tangible by explaining a real-life example of thermal energy transfer. As students write about kinetic energy, density, and convection, they will gain a deeper understanding of each of these concepts and how they interact. Learners must also interpret particle models, a fundamental skill for science instruction. This activity can also prepare students to undertake engineering design challenges.

To learn more, check out Heat Transfers: Conduction, Convection, and Radiation.