How do you solve a marble puzzle?

Answer 1

if you want to make a marble maze and make it go as slow as possible go to
http://pbskids.org/zoom/activities/sci/marblemaze.html

here are some results:

Paige and Izzy, age 14 of Washington, D.C. wrote:
We used tubes and cut them in half then we put corn syrup in the tubes and it went really slow. it took almost eight minutes!

Angelina, age 9 of Sandown, NH wrote:
when I tried marble maze it was awesome! I'm totally into science.

Paul wrote:
My average time was 41 seconds. Also, later I added on two paper towel tubes, and it increased the time by about 5-7 seconds.

Mikalya, age 5 of Twin Cities, MN wrote:
My mom and I tried it 7 times and it went super slow our last time.