Collect metal vessels and various metal articles. Write detailed information. Write the steps in the procedure that can be done in the laboratory for giving glitter to these. Seek guidance from your teacher.

Explanation

Various metals such as copper, iron, silver, etc. are used in day-to-day life. These metals get corroded after long time and lose their shine. There are various ways to glitter these metal articles.
i. Rubbing the vessels with sand paper or toothpaste: Sand paper and toothpaste contain fine abrasive particles. We can remove the outer damaged surface from metal articles by rubbing it with sand paper or toothpaste. Once the outer corroded layer is removed, the metal articles will glitter
ii. By using lemon or tamarind juice: The green colour on copper vessel is due to formation of copper carbonate on it. Copper carbonate reacts with acids present in lemon or tamarind and as a result, this copper carbonate layer gets removed and the copper article glitters.
iii. Using reagents such as silver nitrate solution: When copper coin is dipped in silver nitrate solution, the glittering white deposit of silver metal is fonned on copper coin. Hence, glitter appears after some time.