James, Clem and Katie are competing in this challenge - but they're playing for their favorite STEM organizations. See more about the competition.
Here's a link to the prizes the STEM organizations can win.
Since we covered three builds in this episode, we thought you might like some more behind the scenes footage of each of the projects:
And here's the Brainstorming Call where they discussed the parts when they received them.
Here's what's in THE BOX: