These kids had to present documents to NASA to justify their experiment. It's a unique experience for Engineering students. I don't think many student projects end up being this successful. In the experiment, a small piston will suck in some of the oil and then will be pushed upwards, creating what is called a vortex ring. A certain amount of force will cause the ring to break free from the surface and form a large droplet, which will demonstrate liquid atomization.
Atomization is a process that produces small droplets of the liquid.
Inert gas atomization is used in powder metallurgy to perfect the science of metal work. On Earth, small droplets of surface tension is the primary force, but gravity dominates, interfering with what to look at. In space, surface tension will be the dominant force, gravity would not. Another benefit to space is that because of the absence of gravity, the droplets are big enough to see what is happening. The students said they were enthusiastic about the potential for their project to make a difference in society.