Alex from Vancouver, British Columbia presents his amazing prosthetic the “Robotic Hand.” Mike from North Bay, Ontario presents the “Ice Ace,” a portable Zamboni everyone can use! Led by Alex, Team DaVinci squares off against Mike and Team Newton to see who can create the best motorized Dust Bunny in the Invent-off Challenge. But first, the teams build the chairs out of cardboard and cable ties in the Cable Tie Chair mini challenge. The team that builds the chair that can hold the team leader the longest wins an advantage for the big Invent Off. Who will win the mini challenge? And who will take it all in the Dust Bunny Invent-Off and win the Genius Cup?

Originally released by Big Media Holdings LLC, 2013. Streaming video file encoded with permission for digital streaming by Infobase on February 10, 2017.

Meet Kid Inventors: Alex and Mike (4:17); --Mini Reward Challenge (4:47); -- Mini Challenge Results (6:42); -- Judging the Final Inventions (3:12); -- Credits: Alex vs. Mike: Think Big (0:44); .