Describe what you observe in the water inside the beaker and above the level of water.

Sagot :

There are bubbles formed at the bottom of the beaker and bubbles in the boiling water. There is also steam observed above the liquid.

 

The bubbles are water in the gaseous state. At the start of the heating process, however, the tiny bubbles that form are due to the air dissolved in the water. This is not boiling. As the water is heated and the temperature of the water rises, the molecules gain more kinetic energy and they move faster. More molecules have the energy to overcome the forces of attraction of the neighboring molecules. These molecules escape to the gaseous phase.