
Mathi and Mozhi practised various exercises like walking, skipping and running. They counted the number of times they breathed in one minute after each exercise and recorded their results in the bar diagram:
Which activity do you think exercises the heart muscle the least?


Important Questions on Air
Mathi and Mozhi practised various exercises like walking, skipping and running. They counted the number of times they breathed in one minute after each exercise and recorded their results in the bar diagram:
They breathed more number of times when they were walking.

Mathi and Mozhi practised various exercises like walking, skipping and running. They counted the number of times they breathed in one minute after each exercise and recorded their results in the bar diagram:
They breathed less number of times when they were sitting.

Mathi and Mozhi practised various exercises like walking, skipping and running. They counted the number of times they breathed in one minute after each exercise and recorded their results in the bar diagram:
They took breaths per minute when they were running.

Mathi and Mozhi practised various exercises like walking, skipping and running. They counted the number of times they breathed in one minute after each exercise and recorded their results in the bar diagram:
The more vigorous (active) the exercise, the greater the number of breaths.

Match the following.
a. Breeze | Strong wind |
b. Storm | Very strong wind |
c. Gale | Gentle wind |

Draw the movement of air for land breeze and sea breeze.


