This video discusses what thermal energy is and describes how it is generated by radioactive decay and how it contributes to geothermal energy. Viewers will also learn about solar energy, what it is and how it is created by fusion. Students will come to understand why it is important to all life on earth and how people use it to provide the world with energy.

Originally released by Mazzarella Media, 2015. Streaming video file encoded with permission for digital streaming by Infobase on July 16, 2018.

Solar Thermal Energy on Earth (4:21); .