This is actually a science project I did when I was in school but I remembered it being so fun, I introduced it to my kids one very wet weekend. They had a ton of fun rearranging the path for the marble to run down. It’s great for them to learn about scientific discovery this way – sometimes one way doesn’t work, so you have to problem solve and think of another way to solve the problem of getting the marble into the box.


  • 6 empty toilet rolls
  • 1 small box (not seen in the picture)
  • 1 marble
  • sticky tape


  1. Clean the toilet rolls from any scraps of paper left on them.
  2. Cut strips of sticky tape and double side them. Stick them to one side of the toilet roll, then stick the toilet roll to the door. Do this for all the toilet rolls.
  3. Have your child figure out a path for the marble to run down and place the box on the ground where they think it will land.
  4. Once the path has been arranged on the door, have your child place the marble in the topmost toilet roll and see where it runs to. If it lands in the box - fab, see if they can make another path. If not, have them rearrange the toilet rolls until the marble runs true.


If you have small children, substitute the marble for a pom pom. It falls slightly slower and doesn't run so away if it misses the box. Plus, if you have wooden floors, it is much less noisy!

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This project was posted by:

    • 13 Jun 2016
      4:48 pm

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  • I loved doing this with master 4. And watching him work out how he could make his tunnels work was great. And something he could do in multiple ways


  • A super easy idea to keep them going!


  • that looks like lots of fun for very little cost.. so cool


  • What a great idea.


  • I will definitely start saving my toilet rolls for this!


  • Great way to keep kids busy.


  • Looks amazing thanks for sharing your project


  • Could use this to do a pom pom sort


  • What a great fun project to do. We always collect toilet rolls, handy for many craft projects. The kids will love doing this one.


  • wow so simple and easy and so much fun


  • This looks like heaps of fun.


  • Very thoughtful and a fun way to engage kids. I will try this with my kids.


  • Great idea. I was looking for some ideas. Thx


  • We did this with blue tack and bouncy balls. We also used a big bowl to catch it at the bottom – fun idea!


  • Great idea, i remember doing that when in Primary school as well. I think when I’m on leave next week we’ll do something similar. Maybe an old fashioned dominoes tumble track too.


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