We know that there are lots of volcanoes in space.
The largest volcano in our solar system is on Mars (Mount Olympus Mons), while Venus has the largest number of volcanoes (and is the smelliest planet).
Today we did a volcano demonstration (this is not an experiment or an investigation, rather it is a demonstration of how lava flows from a volcano).
We know that bread soda and vinegar will react together to give a gas called carbon dioxide.
If we add wash-up liquid and red food dye we can make our own realistic looking erupting mini-volcano.
We had varied levels of success with our volcanoes.