Page 122 - ICSE Science 3 : E-book

• A good sleep gives us rest. Our body needs proper sleep of eight hours per day
to stay fresh and energetic.

• Daily exercise keeps us active. It makes our body strong and fl exible. Yoga,

aerobics, swimming, cycling and running are some forms of exercise. They keep
us fi t and strong.

ACTIVITY TIME

Make a list of exercises you can do to keep your body strong and fl exible.

Cleanliness in the Surroundings

Besides personal hygiene and cleanliness, we should keep our surroundings also
clean to be healthy. Keeping the surroundings clean is the responsibility of each

and every person living at home or in the society. Therefore, we must know the
causes that make our surroundings dirty and the ways to improve it.

Causes of unhealthy surroundings

Various human activities add dirt and harmful pollutants to the environment
and make it unhealthy. Some of these activities include use of polythene bags,

spitting, and dumping of garbage and wastes here and there. These pollutants
spread germs and make the environment unfi t for us. Some indicators of unhealthy

environment are polluted air, land and waterbodies.

use of polythene spitting here and there dumping of garbage in waterbodies

Causes of unhealthy surroundings

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