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 clip could be used as an introduction to work on puberty, and to examine some of the changes that take place in the body during this stage of our lives. The class could discuss the question posed at the start of the clip, "What are the names of the hormones that cause puberty in boys and girls?"