During the holidays my son, Charlie, and I designed and made two marble runs from things that we had at home (cardboard, tape).
The first one was quite basic. I built the base and Charlie told me where to put the strips of cardboard.
The second one was more complicated. I drew a grid on some cardboard and Charlie drew the path that the marbles would travel along.
Then I made walls from card (it took ages!) and the end result looks like this:
Your Challenge: Create your own marble run from things you can find at home
Post the results (photos etc) to your own blog
Here's how our marble runs worked...
