While on-board a high-speed rollercoaster, Professor Robert Winston explains the dramatic changes that take place in our body during puberty. He discusses the role of the sex hormones and the physical changes that occur, including growth of pubic hair and bones, and production of sperm and eggs.

This clip is from:
Bitesize Secondary, Science 1
First broadcast:
28 February 2008

The class could look at puberty as part of study of growth and development. Students could research and discuss the physical changes that happen during puberty. Compare growth and development in humans with other organisms and ask students to suggest why different species reach sexual maturity after different time periods.