Disappearing Metals

Metals are strong but they can be dissolved in various liquids. This film shows the dissolving and disappearing of 6 metals in different liquids, including acids, a strong base, and water. It’s kind of sad to watch these beautiful metals leaving this world… (Photography: Yan Liang)

Teachers can download a Worksheet for using this film in classrooms.

 
 
The disappearing of a piece aluminum foil in sodium hydroxide solution

The disappearing of a piece aluminum foil in sodium hydroxide solution

The disappearing of a piece of copper sheet in concentrated nitric acid

The disappearing of a piece of copper sheet in concentrated nitric acid

The disappearing of lithium in water

The disappearing of lithium in water

The disappearing of potassium in water

The disappearing of potassium in water