Why does a rubbed ruler lift paper that has never touched the cloth? Explain charging by electron transfer and distinguish attraction from evidence of opposite charges.

Pupils try “����Vlogt how charging changes attraction”. Includes the editable PowerPoint, a 50-minute lesson plan and a printable pupil sheet with equipment, instructions, example evidence and worked teacher answers.

KS3 physics for ages 11–14. Part of the electric charge and circuits sequence.