why the small volcano can blow out? the volcano is made from the mixed of baking soda and vinegar.?

Question

the volcano is made from the mixed of vinegar and baking soda. it's a simple home made volcano, usually used for children's experiment.

Answer 1

The very first hit from a Yahoo! search on
vinegar baking soda volcano
leads to a brief, clear description of the experiment and why it works, at
http://chemistry.about.com/cs/howtos/ht/buildavolcano.htm

There is a Yahoo! search bar at the very top of this page, and probably of all pages in this Answer section. Just enter the words you think need to be on the page you want, and hit Enter on your keyboard or click the "Web search" button beside the field.