Marble run project

In Te Ngahere we did a project on a marble run. We had to create a ramp that we thought would make our marble roll 1.1 meters away from the end of it. If we got 1.1 meters once it was a fluke so we had to roll the marble 10 times and see how many times we were close or got 1.1 meters. If it was nowhere near 1.1 meters away then we had to modify the ramp to make it roll closer or roll to 1.1 meters. My groups ramp was a chair with a piece of cardboard which was sellotaped to the top of the chair and at the end of the ramp was a part that the marble could jump but sometimes it failed because it got stuck doing the jump. We are now going to do a competition in our school in about three weeks. I enjoyed recording how far the marble went but sometimes it was hard recording the distance because sometimes there was a misreading then we had to do it again. I think me and my group could do better at modifying our ramp because of the times it failed to roll and wedged itself on the jump. After this we made a variables DLO.