STICKING A BALLOON TO A WALL

MATERIALS:

• balloon
• a piece of wool, nylon or fur
• wall

PROCESS:

Blow up the balloon and tie it.

Rub the balloon with your piece of wool, nylon or fur quickly.

Put the balloon against the wall and let go.

Watch what happens. It should stick to the wall.

EXPLANATION:

Why does this happen? When you rub the balloon, you’re covering it with little negative charges. The negative charges are attracted to the positive charges that are in the wall. That’s why the balloon ‘sticks’ to the wall.

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