The front lawn of the Museum of Science and Industry nearly erupted as 90 volcanoes shot off in celebration of the Chicago institution’s 90thbirthday.

It was a combination celebration of sorts, marking both the museum’s birthday and their newest exhibit “Pompeii: The Exhibition.”

With first through fourth grade students fromBret Harte Elementary School and William P. Gray Elementary School, the volcanoes shot off from an eruption consisting of baking soda and citric acid.

“This event is an example of how we can bringthe Museum of Science and Industryto the community and allow students and their families to see themselves participating in STEM activities outside the museum’s walls,”said Jessica Chavez, the Ruth D. and Ken M. Davee vice president of education and chief learning and community partnership officer atMSI.“We believe that by sparking curiosity and passion for science at a young age, we can help shape the inventive genius in everyone.”

The exhibit works to tell the story of Pompeii, the ancient Roman city that was destroyed more than 1,900 years ago and still lives on in its volcanic preservation after the eruption of Mount Vesuvius.

On display, visitors can find full body casts of the volcano’s victims, marble and bronze sculptures, gladiator armor, jewelry and other personal items.