Step-by-Step Instructions
Steps:
1. Cut the cardboard tubes into various lengths and shapes.
2. Use tape to attach the tubes to the inside of the cardboard box, creating a maze-like structure.
3. Create ramps and tunnels by cutting openings in the box and connecting the tubes.
4. Decorate the cardboard box with craft paper and markers or paint.
5. Test the marble run by releasing marbles at the top and watching them navigate through the maze.
6. Make adjustments and additions as desired.
7. Have fun playing with the cardboard marble run!