If the Wrapping It Up activity included measurements or data, please describe what factors influenced the accuracy of your results. (Do not include mistakes, only unavoidable measurement imprecision.)...If the Wrapping It Up activity included measurements or data, please describe what factors influenced the accuracy of your results. (Do not include mistakes, only unavoidable measurement imprecision.) If you obtained any numerical values for the accuracy of your measurements during the activity, note those here. For each event, give the approximate age of the universe and what conditions were like then. (Do NOT include events specific only to Earth, such as the appearance of dinosaurs.)