write an activity to show metals are ductile

1. Take pieces of metals like iron, aluminium, copper and  zinc and materials like plastic, ceramic etc.
2. Measure the length, breadth and width of the pieces.
3. Clamp one of the material pieces on a stand.
4. Add a weight on the free side of the piece and measure the changes in the dimension of the piece. Note the weight at which the material breaks.
5. Repeat the process increasing the weights added each time.
6. Repeat the procedure with the other material.

The dimensions of the metal pieces will change on applying pressure on it.  Materials like plastics, ceramics will break indicating that metals can be deformed on applying pressure as they are ductile.