NCERT Class 1 Environmental Studies • Foundational EVS (NEP 2020)

Chapter 9: Air, Water & Weather

Q: Write three important facts about air that surrounds us.

Model Answer:1. Air is present everywhere around us.2. We cannot see or smell air, but we can feel it when it blows.3. All living beings need air to breathe and stay alive.

Q: Explain what Breeze, Wind, and Storm mean.

Model Answer:• Breeze: Gentle, cool, and pleasant moving air.• Wind: Fast-moving air that flies kites and sways trees.• Storm: Very strong, violent blowing wind that brings heavy rain and can uproot trees.

Q: Name three things that need air to work or fly.

Model Answer:1. Kites and hot air balloons flying in the sky.2. Windmills generating clean electricity.3. Bicycle and car tires, footballs, and swimming tubes filled with air.

Q: List four daily household activities that require water.

Model Answer:1. Drinking and cooking food.2. Bathing and washing hands.3. Washing clothes and dirty utensils.4. Watering garden plants and cleaning the floor.

Q: Name two natural sources of water and two man-made sources of water.

Model Answer:• Natural: Rain, Rivers, Lakes, Oceans, Ponds.• Man-made: Taps, Wells, Tube wells, Hand pumps, Dams.

Q: Name four types of weather conditions we observe throughout the year.

Model Answer:1. Sunny day: Hot and bright sun.2. Rainy day: Dark clouds and showers.3. Windy day: Strong breeze blowing.4. Cold / Chilly day: Foggy and freezing winds.

Q: Fill in the blanks:(a) Moving air is called _______ (wind / water).(b) Rain fills dry rivers, ponds, and _______ (lakes / chairs).(c) Dark clouds brin

Model Answer:(a) wind(b) lakes(c) rain

Q: State True or False:(a) Water has a fixed shape of its own and never takes the shape of its container.(b) Air has weight and occupies space.

Model Answer:(a) False. Water takes the shape of whatever bottle or bowl it is poured into.(b) True. An inflated balloon is heavier and bigger than a deflated one.

Q: What makes the air dirty (polluted), and how can we keep the air clean?

Model Answer:• Pollution caused by: Smoke from factories, exhaust fumes from vehicles, and burning garbage.• How to clean: Plant lots of green trees and walk or cycle for short distances.

Q: What happens to wet clothes hung outside under the warm sun? Where does the water go?

Model Answer:The sun's heat turns the water into invisible water vapour (evaporation), which rises up into the air to form clouds.

Fresh Air, Uses of Water, Sunny, Rainy, Windy & Cloudy Days | CBSE Session 2026–27

Core Pedagogical Competencies & Concepts

Core Theme of 'Air, Water & Weather': Understanding natural and bodily phenomena.
Developing keen observational skills, scientific inquiry, and environmental empathy.
Practical health, hygiene, and ecological awareness aligned with NEP 2020.

All Textbook Exercises & In-Text Tasks (16 Questions)

100% Complete Ingestion

Q1 Properties of Air • Characteristics

Write three important facts about air that surrounds us.

[3 Marks]

✅ Step-by-Step Solution & Working

Model Answer:
1. Air is present everywhere around us.
2. We cannot see or smell air, but we can feel it when it blows.
3. All living beings need air to breathe and stay alive.

CBSE Step-by-Step Marking Scheme

Air is everywhere 1 M

Cannot see but can feel 1 M

Needed for breathing 1 M

Q2 Wind, Breeze, Storm • Movement of Air

Explain what Breeze, Wind, and Storm mean.

[3 Marks]

✅ Step-by-Step Solution & Working

Model Answer:
• Breeze: Gentle, cool, and pleasant moving air.
• Wind: Fast-moving air that flies kites and sways trees.
• Storm: Very strong, violent blowing wind that brings heavy rain and can uproot trees.

CBSE Step-by-Step Marking Scheme

Breeze definition 1 M

Wind definition 1 M

Storm definition 1 M

Q3 Uses of Air • Everyday Life

Name three things that need air to work or fly.

[2 Marks]

✅ Step-by-Step Solution & Working

Model Answer:
1. Kites and hot air balloons flying in the sky.
2. Windmills generating clean electricity.
3. Bicycle and car tires, footballs, and swimming tubes filled with air.

CBSE Step-by-Step Marking Scheme

Three uses of air listed 2 M

Q4 Uses of Water • Daily Needs

List four daily household activities that require water.

[2 Marks]

✅ Step-by-Step Solution & Working

Model Answer:
1. Drinking and cooking food.
2. Bathing and washing hands.
3. Washing clothes and dirty utensils.
4. Watering garden plants and cleaning the floor.

CBSE Step-by-Step Marking Scheme

Four uses of water 2 M

Q5 Sources of Water • Natural & Man-made

Name two natural sources of water and two man-made sources of water.

[2 Marks]

✅ Step-by-Step Solution & Working

Model Answer:
• Natural: Rain, Rivers, Lakes, Oceans, Ponds.
• Man-made: Taps, Wells, Tube wells, Hand pumps, Dams.

CBSE Step-by-Step Marking Scheme

Natural sources 1 M

Man-made sources 1 M

Q6 Weather Types • Daily Changes

Name four types of weather conditions we observe throughout the year.

[2 Marks]

✅ Step-by-Step Solution & Working

Model Answer:
1. Sunny day: Hot and bright sun.
2. Rainy day: Dark clouds and showers.
3. Windy day: Strong breeze blowing.
4. Cold / Chilly day: Foggy and freezing winds.

CBSE Step-by-Step Marking Scheme

Four weather conditions named 2 M

Q7 Fill in the Blanks • Air & Water

Fill in the blanks:
(a) Moving air is called _______ (wind / water).
(b) Rain fills dry rivers, ponds, and _______ (lakes / chairs).
(c) Dark clouds bring _______ (rain / sunshine).

[3 Marks]

✅ Step-by-Step Solution & Working

Model Answer:
(a) wind
(b) lakes
(c) rain

CBSE Step-by-Step Marking Scheme

wind 1 M

lakes 1 M

rain 1 M

Q8 True or False • Earth Science

State True or False:
(a) Water has a fixed shape of its own and never takes the shape of its container.
(b) Air has weight and occupies space.

[2 Marks]

✅ Step-by-Step Solution & Working

Model Answer:
(a) False. Water takes the shape of whatever bottle or bowl it is poured into.
(b) True. An inflated balloon is heavier and bigger than a deflated one.

CBSE Step-by-Step Marking Scheme

(a) False 1 M

(b) True 1 M

Q9 Air Pollution • Keeping Air Fresh

What makes the air dirty (polluted), and how can we keep the air clean?

[2 Marks]

✅ Step-by-Step Solution & Working

Model Answer:
• Pollution caused by: Smoke from factories, exhaust fumes from vehicles, and burning garbage.
• How to clean: Plant lots of green trees and walk or cycle for short distances.

CBSE Step-by-Step Marking Scheme

Causes of dirty air 1 M

How trees keep air clean 1 M

Q10 Water Cycle • Simple Explanation

What happens to wet clothes hung outside under the warm sun? Where does the water go?

[2 Marks]

✅ Step-by-Step Solution & Working

Model Answer:
The sun's heat turns the water into invisible water vapour (evaporation), which rises up into the air to form clouds.

CBSE Step-by-Step Marking Scheme

Evaporates into water vapour / rises to clouds 2 M

Q11 Rainbow Formation • Sunlight & Rain

When do we see a rainbow in the sky? How many colours does it have?

[2 Marks]

✅ Step-by-Step Solution & Working

Model Answer:
We see a rainbow when the sun shines through raindrops after a shower. It has seven (7) colours.

CBSE Step-by-Step Marking Scheme

Sun shines after rain 1 M

7 colours 1 M

Q12 Save Water • Conservation Action

State two ways children can avoid wasting water at home and school.

[2 Marks]

✅ Step-by-Step Solution & Working

Model Answer:
1. Turn taps off tightly after washing hands.
2. Never play with water hosepipes; use remaining water in water bottles to water plants.

CBSE Step-by-Step Marking Scheme

Turn off taps 1 M

Re-use leftover water for plants 1 M

Q13 Hands-on Experiment • Air Has Shape

What happens when you blow air into a rubber balloon?

[1 Marks]

✅ Step-by-Step Solution & Working

Model Answer:
The balloon expands and gets bigger, proving that air occupies space.

CBSE Step-by-Step Marking Scheme

Expands / air occupies space 1 M

Q14 Safety in Storm • Weather Caution

Where should you NEVER stand during a thunderstorm with lightning?

[1 Marks]

✅ Step-by-Step Solution & Working

Model Answer:
You should never stand under a tall tree or near metal poles in an open field because lightning strikes tall objects.

CBSE Step-by-Step Marking Scheme

Stay away from tall trees/poles 1 M

Q15 Odd One Out • Water Forms

Find the odd one out: [River, Rain, Tap, Ocean].

[1 Marks]

✅ Step-by-Step Solution & Working

Model Answer:
Tap is man-made, while River, Rain, and Ocean are natural water bodies.

CBSE Step-by-Step Marking Scheme

Tap with valid reason 1 M

Q16 Golden Environmental Rule

Why is water called 'Liquid Gold'?

[1 Marks]

✅ Step-by-Step Solution & Working

Model Answer:
Because no human, animal, or plant can survive without water. Every drop of water is precious!

CBSE Step-by-Step Marking Scheme

Life cannot survive without water 1 M

🌟 NEP 2020 Competency-Based Case Study

Air, Water & Weather Environmental Case Study

In 'Air, Water & Weather', Grade 1 learners explore their natural environment and daily interactions, observing cause and effect in the world around them.

Analytical Task: What essential ecological or health habit does 'Air, Water & Weather' teach us to practice every day?

Evaluation & Model Answer:

It teaches us to observe nature carefully, practice daily personal hygiene, and protect all living beings with kindness and respect.

Rubric: 1.5 M for habit identification + 1.5 M for environmental rationale