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question_answer1) Have you ever seen air?
question_answer2) Why do you think mountaineers carry oxygen cylinders with them, while climbing high mountains?
question_answer3) Why do traffic policemen wear mask with charcoal lining?
question_answer4) Why the transparent glass of windows if not wiped off regularly appear hazy?
question_answer5) Why during an incident of fire, one is advised to wrap a woollen blanket over the burning object?
question_answer6) Will the tiny air bubbles seen before the water actually boils also appear if we do this activity by reheating boiled water kept in an air tight bottle?
question_answer7) How air is important for life on Earth?
question_answer8) What is the composition of air?
question_answer9) Which gas in the atmosphere is essential for respiration?
question_answer10) How will you prove that air supports burning?
question_answer11) How will you show that air is dissolved in water?
question_answer12) Why does a lump of cotton wool shrink in water?
question_answer13) The layer of air around the earth is known as...
question_answer14) The component of air used by green plants to make their food, is...
question_answer15) List five activities that are possible due to the presence of air.
question_answer16) How do plants and animals help each other in the exchange of gases in the atmosphere?
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