When we are physically active our body will burn the chemically stored energy we get from the food we eat. But what happens if we don't do any exercise at all? In the eighth video of the Chemistry Calendar we do a little chemistry experiment to compare our energy expenditure between rest and hard training.

The Chemistry Calendar 2011 is a joint project between Molecular Frontiers, Chalmers University of Technology, University of Gothenburg and Universeum. We work together with film company Untamed Science to launch a video per month during the International Year of Chemistry 2011.

For teachers: Teaching material, including descriptions of lab experiments can be found in the Teachers section on MoleClues! The video has subtitles that can be activated through the CC icon in the YouTube toolbar.