Posted - September 13, 2007

It's interesting to see steel wool burn, but even more interesting to note the increase in mass in the reaction product. Actually, we know the mass really can't change, but in this case as oxygen from the atmosphere combines with the iron, the mass in the reaction container increases.

Further Information

This video is part of the excellent collection featured at science-tube. There you will find extended commentary regarding this demonstration, plus printable support notes. Thanks, science-tube!