Tough Guys in the Pool
How well did you do?
1. The pool can become warmer
than the sea when the sun shines on it. The sea is larger so
takes longer to warm up.
2. The pool can become colder than the sea at night. The sea
takes weeks to change temperature.
3. The pool can become saltier than the sea when the water
evaporates. If all the water evaporated there would be a layer of
salt at the bottom of the pool.
4. The pool can become less salty than the sea when it rains.