Each group must make three marble runs which must be 33 centimetres high and 19 centimetres wide.  This is the size of a ladies shoebox and your teacher will have boxes and lids this size that you can use or you can design your own.

Each marble run must be faster or slower than the other two runs.

Each marble run must have a collection cup at the end of the run so the marble stays in the marble run and does not roll across the floor e.g. a small box or one cardboard egg holder.

The marble cannot freefall from the top to the bottom, it must roll down a run onto another run.

You can use any material that you wish but you need to be aware of how environmentally friendly your marble runs are and consider more environmentally friendly alternatives.

You will be supplied with a stopwatch to time your marble runs and experiment with different materials and designs.

All group members must write their own individual blog, give feedback and design their own initial marble runs.

Group members cannot move to the Finished page until they have finished creating their marble run and finished blogging.

There will be prizes awarded to the fastest, slowest and most environmentally friendly marble run and the teacher's decision is final.

Group members must work as a team at all times and be aware of our team work rules!