CHANGE OF STATES

In today's chemistry lesson, the student will learn about the different states of matter, energy, applications and the uses. The lesson begins by correcting assignments from the previous lesson which included the assignment on types of change and chemical changes from the list. Further on students learn that a candle undergoes both physical and chemical change where candle wax melts which is physical and chemical change takes place when candle threads burn. At the end of the lesson, they will understand that at ordinary temperature water exists in liquid state. At lower temperature it turns into ice while it also comes in gaseous state when steam water.