Seal with Air (Page 7)

Materials:

Water

Clear glass

Cardboard card

1. Fill a clear glass 3/4 full of water.
2. Place cardboard card on top of glass.
3. Hold on to cardboard card and flip glass over.
4. Slowly remove hand from under cardboard card.

Results:

The water changed ends of the glass creating and air-tight seal holding the cardboard card to the glass preventing the water from escaping.