Kissing Apples

What you need:Kissing apples
• Two apples
• String

What you do:
• Attach a piece of sting to each apple.
• Have each hand hold one string so that the apples  are at nose-level, 6″ apart.
• Blow hard between the apples and watch them move!

What should happen:
• The apples will get closer  to each other.

Why does that happen:
• The air pressure is lowered as you blow between the apples (think of the air molecules as ping pong balls … they balls don’t have enough time to touch the apple surface as they zoom by).
• The air surrounding the apples that’s not really moving is now at a higher pressure, and pushes the apples together.

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