A volcano is an opening in the Earth’s crust that allows magma , hot ash and gases to escape. Volcanoes can look like mountains or small hills, depending on what type they are.
Magma is molten rock - rock that is so hot it has turned into liquid. When magma reaches the surface of the Earth it is called lava and comes out of the volcano as a volcanic eruption, along with gases and ash.
There are so many different fun activities below that all link to volcanoes.
Take your pick from labeling, making a Top Trump Game or a True or False Game.