What is a volcano?

The two classes got together to come up with questions about volcanoes:

You might see them better on the MindMup app:

Volcanoes on MindMup

After that we worked in pairs to come up with some kind of definition.
Here are some of 4G's:


In 4B we worked on a definition together:

A volcano is a mountain that erupts spitting out scorching lava.