Write your observation and conclusion for the following:

(a) When few marbles are put in a glass half filled with water.

(b) Ice is kept at room temperature.

(a) When few marbles are put in a glass half filled with water the water level rises up. This is because marble occupy space.

(b) When ice is kept at room temperature, it changes into water. The temperature of ice is lower than room temperature, so it absorbs heat from its surroundings and melts to form water.