Cut two equal lengths of thread/string
and tape them to the top of a door
frame in the middle about 1 inch or
2.5 cm apart.
up the balloons and tie each end so
that the air does not escape.
3. Tie each
of the blown up balloons to the end
of each thread/string so that they
are hanging at the same height and
are resting next to each other.
4. Rub each
of the balloons with the woolly jumper/sweater
to charge them (one at a time).
What happens when you let
them go? How do they react to each
Both of the balloons have
become negatively charged once they
have been rubbed with the woollen
jumper/sweater and will push each
other away. Items that are made up
of the same material will always take
on the same charge.
If you have a matching charge
of static electricity in like items,
they will repel each other just like
the same poles of magnets will repel
Try to bring the two balloons
together after they have been rubbed
with the woollen sweater/jumper. What
happens when you try to bring the
Place your hands in between
the two balloons, does something different