The students present a project where they dismantled and labeled the parts of a bicycle. They discuss the materials bicycles can be made from, like carbon fiber and steel. They name and describe the key parts of a bicycle, including the wheels, brakes, handlebars, chain, seat, fork, pedals, and frame. Videos are included showing how the front and back gear changes work.

1. MOUNTAINBIKE Gerard Mas Pallarols Marc Vallejo i Pallares Eduard Planas Altarriba IES CIRVIÀNUM DE TORELLÓ CATALUNYA (BARCELONA) 14 ,14 ,13 ANYS CURS: 2oN D’ESO

4. Keys and screws that we used to dismantle the bicycle

5. while we dismantle the bicycle

14. Front gear change http://www.youtube.com/watch?v=CHccbwbLQgE

15. Back gear change http://www.youtube.com / watch?v=pu7Xz1CvL4M