A Trick To Fill Balloons Without Using Helium Gas

Whatever the reason for the celebration, the balloons cannot miss: the more, the better effect it creates, especially in children's parties. They are usually filled with helium gas to stay suspended in the air, but not everyone has this possibility.
There is another way to fill them and is a homemade method that can also be interesting to do as scientific experience with children.
Ingredients:
500 g of sodium bicarbonate
500 ml of white vinegar
A 1 or 2 litre bottle
Two funnels
Balloons
Put the vinegar in the bottle with one of the funnels, add the baking soda with the second funnel (which must be completely dry). Now cover the mouth of the bottle with the balloon and see that it will start filling. Ready! Quick and easy!