Marble Tracks

Our new topic is marble tracks. 

We watched some youtube clips of other children's marble tracks.  We then tested marbles on different surfaces.  We found out that marbles move better on hard surfaces and that they go faster if they are going down hill.  We then tried to make our own ones.  Some of us found it very tricky and had to keep trying to improve our marble tracks.  Here are some of our first attempts.  Let us know what you think of them.  Thanks for watching.

Could you make a marble track at home?