Make helium baloon at home

Things you will need:

1. Baking soda
2.A plastic bottle(any)
3.Balloon
4.two funnels
5.vinegar

What to do:

1.Take the bottle and fill it 1/3 of vinegar with one funnel.
2.Now with the help of another funnel put 1/2 of balloon fill with baking soda.
3.Now put the balloon on the top  the bottle and let the baking soda go inside the bottle and mix with  the vinegar.

(Now bubbles will form and your balloon will start to inflate.)

4.When it is filled tie the balloon's mouth with the string.

Enjoy your balloon.

What happened:

When baking soda is mixed with the vinegar ,the reaction produces a gas (as by product) which fills in the balloon.

*_______________________________________________________________________________*