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 tirne 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? Alustrated by Lynnette Dua Figure 1 Lighted Candle Letting wet clothes to dry (Figure 2). 5. What is your observation on the wet clothes before exposure to the heat of the sun? How about during the time of sun exposure? Finally, after it was exposed to the sun? 6. What process takes place when a liquid state changes to a gas state? 7. How about when the gas state changes back to a liquid? What is the process called? Photo credits: Lynette C Du Figure 2 Hang wet clothes Toilet deodorizer (Figure 3) is placed in the cornfort room 8. What is your observation about the size of the toilet deodorizer based from the given conditions? A Packed toilet deodorizer. B. Unpacked deodorizer after 5 days. c. Unpacked deodorizer after 15 days. 9. What causes the change in its size? 10. What process takes place when solid state changes to gas state? Photo credits: Lynnette C Dus Figure 3 Toilet deodorizer​

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