Volcano in our kitchen

I've been reviewing with Jaś what he remembers about how the Earth is built and what he knows about volcanoes.

First we read this book:

Next we made play-dough:

Jaś wanted his volcano to be green-brown-yellowish color, that's why we added some food coloring to the play-dough:

Jaś formed his volcano on a plastic bottle:

We added a couple of spoons of soda to the bottle:

And poured vinegar into it. And voila ... lava started pouring out of the volcano!

Jaś also worked with Montessori 3-part-cards of Earth layers:

And parts of a volcano: