Classroom mode
Run it in class
Why does rubbing a balloon on your hair make it stick to the wall?
Show of hands — before you project anything
Predict before testing: if we touch the charged balloon to a metal pole, will it still stick? Then drain it and check.
- A Way more than you'd guess
- B About what you'd guess
- C Way less than you'd guess
Count the votes out loud. Hold them to it — then watch.
Project it (fullscreen)
Discussion prompts
- Predict before testing: if we touch the charged balloon to a metal pole, will it still stick? Then drain it and check.
- Predict whether a charged balloon can stick to a wall that has no extra charge of its own, then explain how the wall's own charges shift.
- Predict which day a balloon stays stuck longer — a damp summer day or a dry winter day — and say why.
Where it shows up in real life
- The zap and crackle when you pull a sweater off over your head
- Hair standing up after you take off a winter hat
- A balloon from a party clinging to the wall or the ceiling
A prediction-first worksheet — no answer key.
zero prep · no login · any projector
Winding down at home? Family mode ·
Explore every question
Why does rubbing a balloon on your hair make it stick to the wall?
Predict — what do you think will happen, and why?
Talk about it
- Predict before testing: if we touch the charged balloon to a metal pole, will it still stick? Then drain it and check.
- Predict whether a charged balloon can stick to a wall that has no extra charge of its own, then explain how the wall's own charges shift.
- Predict which day a balloon stays stuck longer — a damp summer day or a dry winter day — and say why.