PDF chapter test TRY NOW
Answer the following questions in a short sentences:
Boojho wants to separate the following materials as combustible and non-combustible. Can you help him?
Charcoal, chalk, stone, iron rod, copper coin, straw, cardboard, glass, paper, candle, wood.
Charcoal, chalk, stone, iron rod, copper coin, straw, cardboard, glass, paper, candle, wood.
Substances that catch fire quickly are known as substances.
Substances that do not catch fire easily are known as substances.
(a). substances - charcoal, straw, cardboard, paper, candlewood.
(b). substances - chalk, stone, iron rod, copper coin, glass.
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