Science (EVS K-5) · Class 1 · Water · Term 3

Why We Need Water

Let's discover all the amazing ways we use water every day, from drinking and bathing to cooking our food and cleaning.

TL;DR:We all know that feeling when we are very thirsty after playing outside! This week, we will become detectives and find out if plants and animals also feel thirsty just like we do.

• CBSE Learning Outcomes
• NCERT EVS Curriculum for Primary Stage: Theme - Water (Uses of Water)

About This Topic

This topic, 'Why We Need Water', is a fundamental concept within the Early Years Environmental Studies (EVS) curriculum, aligning with the NCF's emphasis on connecting learning to life outside the school. For Class 1 students, the primary goal is to build an empathetic understanding that water is essential for all forms of life, not just humans. The lesson moves from the child's personal experience of thirst to observing the needs of plants and animals in their immediate environment. It encourages a sense of responsibility and care for other living beings.

By focusing on direct observation, such as comparing a watered plant with an unwatered one, students engage in scientific inquiry at a very basic level. This hands-on approach helps solidify the abstract concept of 'need' and 'life'. The topic serves as a foundational stepping stone for later, more complex ecological concepts like food chains, habitats, and the water cycle. It is crucial to use simple language, relatable examples like pets and garden plants, and interactive activities to foster curiosity and a lifelong respect for natural resources.

Key Questions

1. Identify three things you do with water every morning.
2. Explain why we need to drink water when we feel thirsty.
3. Compare a day with water to a day without water.

Learning Objectives

• State that all living things, including humans, animals, and plants, need water to live.
• Describe or demonstrate how different animals drink water.
• Explain what happens to a plant when it does not get water.
• Identify at least three uses of water in their own daily life.
• Develop a sense of care for plants and animals by understanding their need for water.

Key Vocabulary

Living Things	People, animals, and plants that can grow, move, and need food and water.
Thirsty	The feeling of needing or wanting to drink water.
Roots	The part of the plant that is under the ground and soaks up water from the soil.
Wilt	When a plant becomes droopy and soft because it does not have enough water.
Survive	To stay alive.

Watch Out for These Misconceptions

Common Misconception

Only people and big animals need to drink water.

What to Teach Instead

All living things need water to survive, no matter how big or small. Even tiny ants and worms, and all the plants and trees, need water to grow and stay healthy.

Common Misconception

Plants drink water through their leaves when it rains.

What to Teach Instead

Plants mostly soak up water from the soil using their roots, which are hidden underground. The water then travels up through the stem to the leaves and flowers.

Common Misconception

Any water, even from a dirty puddle, is okay for animals.

What to Teach Instead

Just like dirty water can make us sick, it can also harm animals and plants. Clean water is the healthiest for everyone and everything that is living.

Active Learning Ideas

Practical Life Work

The Tale of Two Plants

Keep two similar potted plants in the classroom. Label one 'Water Daily' and the other 'No Water'. Students observe and draw the changes in both plants over a week, leading to a clear visual understanding of water's importance.

15 min·Whole Class

Practical Life Work

Animal Water Sip 'n' Slurp

Show short video clips of different animals drinking water (e.g., a cat lapping, an elephant using its trunk, a bird sipping). Afterwards, students can mimic the actions of these animals, making it a fun, kinesthetic learning experience.

20 min·Whole Class

Practical Life Work

My Water Day Chart

Students create a simple chart by drawing all the activities for which they use water from morning to night, such as brushing, bathing, drinking, and washing hands. This connects the broader topic directly to their own daily lives and routines.

25 min·Individual

Real-World Connections

• Watering plants at home or in the school garden to help them grow strong and give flowers or vegetables.
• Leaving a bowl of clean water on the balcony or outside the house for thirsty birds and stray animals in the summer.
• Understanding why we need to drink plenty of water, especially after playing, to stay healthy and energetic.
• Seeing farmers watering their fields and understanding that this water helps grow the food we eat every day.
• Learning not to waste water from the tap because it is precious and needed by everyone.

Assessment Ideas

Quick Check

Picture Sort: Give students a set of pictures (e.g., cat, car, flower, book, boy, rock). They must sort them into two piles: 'Needs Water' and 'Does Not Need Water'.

Quick Check

Show and Tell: Ask students to draw their favourite animal and then explain to the class how it might drink water.

Quick Check

Observation Drawing: Students are given a worksheet with two pots. They must draw a healthy, watered plant in one and a wilted, dry plant in the other, based on the classroom experiment.

Frequently Asked Questions

How do fish drink water when they are already inside it?

Fish don't need to drink water like we do. They get the water their bodies need through their skin and gills directly from the water they live and breathe in.

Where do stray dogs or birds find water to drink?

They are very clever at finding water. They drink from puddles after it rains, from ponds, or sometimes kind people leave bowls of fresh water for them, especially during hot days.

Do all plants need the same amount of water?

No, different plants need different amounts of water. A cactus in the desert needs very little water, but a lotus plant that grows in a pond needs to be in water all the time.