Tongariro erupting last night gave us the perfect learning opportunity today. We used to make baking soda volcanoes at Playcentre heaps, but its been a few years since we've had one at home. I am actually not sure if I have ever made Danger Mouse one.
We had two ice cream containers of old play dough that I moulded into a volcano shape, and hid an egg cup in the top to hold the baking soda.
Once we had our volcano, we spent a bit of time on the Internet looking at exploding volcanoes and learning a bit about lava. When I was sure the boys had the concept of it, it was time to explode our own volcano.
I put a few tablespoons of baking soda into the egg cup with a bit of red food colouring. Then let the boys take turns to pour the white vinegar into the cup.
Sprat was a bit more reserved. He's cool now he goes to school you know.
I am looking forward to making more of these in the sandpit this summer.