Susie sings a song about inclined planes. In the song, she highlights a scenario in which they are useful: building pyramids in ancient Egypt. The song is accompanied by visuals to illustrate how an inclined plane works.
Teacher Suzy sings about muscles. The song mentions that muscles are everywhere throughout our body, and each muscle serves a purpose. The video provides an illustration of the muscular system and explains some common actions that muscles help us perform, such as smiling.