Steel wool is placed in a jar that is inverted over water, causing the steel wool to react with oxygen in the air and form rust.
This activity gives students an understanding of what rust is and how it is formed. It helps them gain a deeper understanding of the composition of air and the earth’s atmosphere.
Chemical reactions (oxidation)
Steel wool placed in a jar that is inverted over water will react with oxygen to form rust, causing the water level in the jar to rise.