If you're doing a project on volcanoes these 10 experiments will help you to understand how they work...
Volcano experiment - A fun an easy experiment! Make your own exploding volcano!
Vocanoes: Volcanic Rocks - three yummy experiments to make sweets that show us how rocks take different forms.
Volcanoes: Suffocating Gases
Volcanoes: Magma Temperature
Volcanoes: Lava Viscosity test
Volcanoes: Gas pressure
Volcanoes: Toroidal vortex