Fill the bowl with water.
2. Scrunch or crumple up the piece
3. Push the paper down into the bottom
of the glass so that it cannot fall
4. Turn the glass upside down and
plunge it straight down into the bowl
What happens to the paper?
Where is the water level
in the glass?
How this works -
The air inside the glass takes up
space and pushes.
The paper stays dry because the water
can only get into the glass by squashing
the air inside it.
can be squashed or compressed, a
little, but then it pushes back and
prevents the water from reaching the