Question

what we have to add in volcano project to make it eruypt

Answer 1

When my friends did it, they added eno, baking soda/powder, some food colour (for the redness)......

I'm sorry as i don't remember what they did for the smoke.......

Answer 2

it is not important to do it with a volcano project you can also do it with the help of a bottle of Coca-Cola Maaza or any other plastic bottle with the help of dishwash food colouring vinegar and baking soda