Erupting Volcanoes Investigation.

To discover what happens when a volcano erupts, we built our own papier mache volcano models with newspaper, pva glue and plastic bottles.  We looked at images of volcanoes from around the world and used these to help us paint our models.  We prepared a misture of tomato ketchup, washing up detergent and warm water and poured this into the vent of our volcanoes.  We then added baking soda, stood back and watched our volcanoes erupt.  We oberved each stage of the euption closely and recorded our results.