Rowan, Kate

Sam and his mother talk about germs, viruses, and bacteria, including how the body fights harmful germs and uses germs that are helpful.

Sam and his mother talk about the different kinds of cells in his body, how they grow, and how in doing so they help him grow.

Sam and his mother talk about germs, viruses, and bacteria, including how the body fights harmful germs and uses germs that are helpful.

Sam learns about his teeth and why it is important to keep them clean with regular brushing.