Warm water is poured slowly into a beaker of ice cubes as shown here.
What can be observed when the warm water is poured into the beaker?
(1) The ice starts melting.
(2) The glass expands.
(3) The temperature of the ice increases.
(4) The temperature of the warm water decreases.

What can be observed when the warm water is poured into the beaker?
(1) The ice starts melting.
(2) The glass expands.
(3) The temperature of the ice increases.
(4) The temperature of the warm water decreases.