Place the orange in a bowl and fill it with water. What happens
to the orange?
2. See if your friend can get the
orange to sink.
3. Take the orange and peel it.
4. Place the peeled orange back in
the bowl of water. What happens this
The orange sinks because
the orange peel if full of trapped
air pockets, therefore making the
orange light for its size (so it floats).
When you remove the
peel (including the air pockets) the
orange weighs a lot for its size,
then it sinks because the orange is
denser than the water.