High-flying action dropped the jaws of attendees at Coors Field on Thursday — and no, it wasn't a part of the Rockies' meandering baseball season.

The Colorado Rockies and Steve Spangler — a Colorado television personality and author deemed “America’s Science Teacher” by Ellen Degeneres — held their 13th annual STEM Day at the stadium, bringing about science, technology, engineering and mathematics examples to nearly 10,000 local students, teachers and parents.

And though the idea sounds like one big classroom lecture, it was anything but.

The event included liquid nitrogen gas pouring through the stadium, a drone show with more than 60 drones and the U.S. Air Force's Wings of Blue parachuting team skydiving into centerfield.  

"As a school teacher, I was always doing some things that would get you in trouble, but you’re visible," Spangler joked about the genesis of his career as a science teacher in the Cherry Creek School District. 

Spangler's bombastic teaching experiments eventually landed him on television, hosting the News for Kids show on CBS Colorado in the 1990s. His YouTube channel, Sick Science!, also has over a million subscribers. 

"My four walls went to the world," he said, noting that after being on the Ellen Degeneres show, the Colorado Rockies reached out to him about starting the STEM Day celebration at the stadium.

The first few years just involved Spangler doing experiments for the children, breaking the Guinness World Record for the "Largest Physics Lesson" with 5,401 participants in 2009.

"From the very beginning, our goal with STEM Day was to spark a lifelong interest in science and technology among students," Spangler said.

13 years later, partners like Arrow Electronics, Neurodiversity Works and Sky Elements Drones reached out to be a part of the colossal science class on the mound.

"I start with these explosions. That's the way I prime the pump," Spangler said. "That's the way that I get kids thinking a little bit. It's an appetizer."

Following the explosion of liquid nitrogen mixing with hot water, groups like Arrow Electronics showed off cutting edge technology, hopefully providing students in attendance a spark for future endeavors. 

For example, Arrow Electronics brought out their SAM Car — a sports car that can be operated by head turns and a mouthpiece, looking to allow those with disabilities — like being quadriplegic — a way to drive.

"Things like this are very important. It really brings it to life for the kids and gets them more excited about learning," Sara Lloyd said.

Lloyd was there with her two children. 

She noted that her son, Standon, walked away with "an excitement about more science. He thought some of the careers that they talked about were cool, especially the one involving the car."

When asked what his favorite part of the world's largest physics lesson was, he quickly exclaimed: "The explosions."

"We're just betting that with some of these kids, there's a seed of greatness that was planted today," Spangler said. "20 years from now, I hope I'm sitting here watching a game and someone says, 'I was one of those kids sitting here and now I'm working on the Mars mission'."