PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoCompare the Changes:
The burning of a candle is an excellent example of a process in which both physical and chemical changes occur simultaneously. The following observations are made while a candle is burning. Classify each of the following observations as either a Physical Change or a Chemical Change by completing the table below.
Answer variants:
Wax changes from solid to liquid.
The burning wax changes directly into soil.
The wax remains permanently in the liquid state after cooling.
Wax reacts with oxygen.
The candle produces oxygen during burning.
The burning process forms sugar as a new substance.
1. Physical change -
2. Chemical change -
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