Unit 1 · Life Around Us · NCERT Class 5 Our Wondrous World

Water — The Essence of Life

You drink it, bathe in it, and grow food with it. Water is everywhere and every living thing needs it. Tap each idea to see where water comes from, how it travels in a never-ending cycle, and how we can save every drop.

💧 3 topics⏱ ~15 min📝 10-question quiz

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Six things to know about water

Water hides many ideas. Tap each one to see what it means and how it connects to your everyday life.

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The three big ideas

Our body is mostly water. We feel thirsty when it runs low, and water keeps us healthy and cool.
Plants drink water through their roots, and every animal needs water every single day.
Without water we could not grow food, cook a meal, or stay clean. That is why water is called the essence of life.

Everyday example. Before lunch, count where you used water today — drinking, brushing, bathing, washing hands, watering a plant.

In just one morning a person easily uses water 8 to 10 times. Now imagine your whole family, then your whole town!

Most of our fresh water begins as rain. Rain water flows into rivers, ponds and lakes, and soaks into the ground.
We lift ground water with handpumps, wells and borewells. Cities store water in big tanks and send it through pipes to our taps.
The sea has plenty of water, but it is salty — not for drinking or for plants.

Common mix-up: Sea water looks like a huge amount of water, but it is too salty to drink. Only fresh water — from rain, rivers and the ground — is useful for us.

The Sun warms water in seas, rivers and ponds; it rises as invisible vapour (evaporation).
High up the vapour cools into tiny drops that gather as clouds (condensation). When clouds grow heavy, water falls as rain (precipitation), and the journey starts again.
The Earth keeps reusing the same water, so we must not waste or dirty it. Save water: turn off taps, fix leaks, reuse, and collect rainwater.

Everyday example. A wet floor dries up on a sunny day. Where did all the water go?

It turned into vapour and floated into the air — the very first step of the water cycle, happening right in front of you.

Where you'll see it

Water in your day

The morning tap

Every glass you drink and every bucket for a bath travelled from rain to a river to a tank to your pipe. Using it with care keeps it flowing for everyone.

Rainwater harvesting

Many homes and schools collect rooftop rainwater in tanks, or let it sink into the ground to refill wells. It is a simple way to store water for the dry months.

Boil before you drink

When water might be unsafe, boiling it kills the germs. This one habit prevents many tummy illnesses.