Students of class VII A of cbse i were taken to science park in the school. Students carried measuring tapes and measured their chest size during inhalaltion and exhalation in centimeters and reached to the conclusion that chest cavity expands during inhalation process of breathing.
Students measured their breathing rate at resting position and after jogging. Students reached to the conclusion breathing rate increases after any physical activity .Students also performed an extended activity of preparing lime water in the science integrated lab and learned that lime water turns milky when the exhaled air rich in carbon dioxide is added to it.
Students collected their readings and observations and prepared a report of same in their scrap files .
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