CBSE Class 7 Science Question 3 of 11

Changes Around Us Physical and Chemical — Question 3

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Question
State whether the following statements are True or False. In case a statement is False, write the correct statement. 1. Melting of wax is necessary for burning a candle. (True/False)
Answer

True 2. Collecting water vapour by condensing involves a chemical change. (True/False) Answer: False: Collecting water vapour by condensing involves a physical change. 3. The process of converting leaves into compost is a chemical change. (True/False) Answer: True