Verified Answer :

PapaBlessJr

Calcium - Milk
Iron- Tools
Sodium-Salt
Tin-Enema
Silver- Coin
Platinum- Jewelry
Lead-Baby Food
Potassium- Bananas
Mercury-particle beam  weapons
Sulfur- Grenades
Gold-Jewelry
Oxygen- Air 
Neon- Lights
Iodine-Hyperthyroidism
Aluminum- Aluminum Foil

It is asking when you use each element in your everyday life. You use helium to fill balloons, gold to make jewelry, and so on.