M: Welcome to the Sound of Science on WNIJ. I'm Mackenzie Thompson from NIU STEM Outreach, and today I'm joined by my good friend, Sam Watt. Sam, today we have a question from Rhea, who asks, "Why do the leaves change colors in the fall?"
S: Good question - and a timely one. I was raking all those pretty colored leaves out of my yard last week.
M: Yeah, they certainly are everywhere this time of year, but they sure look nice while still on their branches.