Who is better at sport - girls or boys?
Well, Sportsround has a new challenge for some of the sportiest kids in the country.
Each week, one boy and one girl will be challenged to try a sport that they've never done before. Whoever wins will get a point for their side.
The score is currently level, with the boys and girls on three points each.
This week our superkids are going head-to-head in kayaking.
THIS WEEK'S CHALLENGERS: THE BOY
USUAL SPORT: Rugby
HENRY SAYS: "I'm worried about losing but hopefully I'll pull out another win for the boys."
THIS WEEK'S CHALLENGERS: THE GIRL
USUAL SPORT: Golf
RHIANNON SAYS: "I'm better at going fast but Henry's better at turning corners. I'm going to put every single effort into this competition and I hope I win."
THIS WEEK'S CHALLENGE: KAYAKING
Henry and Rhiannon will be competing against each other on a kayak course at the National Watersports Centre in Nottingham.
They'll be learning how to use a paddle and how to turn their kayak.
It'll be a test of their strength but also their skill.
In the competition they'll be doing a time trial in two parts. First they'll race through a slalom section, weaving between gates. The superkid with the fastest time will be the winner.
Rhiannon paddled her way to victory. The score is now 4-3 to the girls