An eruption seen from the inside!
This very demonstrative model allows through the observation of an erupting volcano section to better understand the functioning of a volcano:
Where does the lava come from 
What makes the magma rise 
How is a magma chamber created 

Composition :

• 2 plexiglass plates (150 x 150mm and 140 x 150mm)
  
• 1 syringe of 60ml
  
• 1 pre-pierced hose
  
• 4 fixing clamps
  
• 1 locking clamp
  
• 100g of washed sea sand
  
• 10ml of methyl red