Activity 1. What changes take place? Objective: Identify the phase change in matter.
Procedure:
A. Answer the questions that follow. Write your answers on a separate sheet of paper. Lighted candle (Figure 1).
1. What is your observation about the candle before it is lighted? How about during the time the candle was lit? How about after putting out the flame of the candle?
2. What state of matter is the lighted candle when it melts?
3. What process takes place when solid state changes to a liquid state?
4. How about when a liquid state changes back to solid? What is the process called?
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Answer:
1.observation of the unit candle include its construction and physical properties (physical state ,size,shape,odor,color).
when you light the wick the flame causes some of the wax to melt,flow up the wick and evaporate and then the wax vapor burns.
when you light candle the heat of the flame melts the wax near the weak
NO.1 lng po ang nasagot
hope It's help