Rub the plastic ruler or comb vigorously against the woolen item for 15–20 seconds. This creates a net negative charge.
Conduct the experiment in a dry room, as moisture in the air causes the static charge to dissipate more quickly. To make this paper even more detailed, I can: Download Static Activity
This paper outlines a foundational STEM activity exploring static electricity through a "Spinning Static Paper" experiment. This hands-on activity demonstrates electron transfer (friction) causing charge separation in insulators. Rub the plastic ruler or comb vigorously against
Use a balloon to lift small confetti paper off a table. Download Static Activity