DIY Volcano Eruption experimental device
This is one DIY experimental device about volcano eruption.
Through this hands-on experiment, children can witness the whole process of volcano eruption and understand its working principle.
They will experience great fun from this exploration.
Originally, the interior of the earth is fulfilled with hot magma and the swollen bubble.
Under the extreme pressure, the magma will break through the earth from the very weak point and spout out.