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Rhythms of Nature – Class 5 The World Around Us Chapter 9 Notes & NCERT PDF

Class 5The World Around UsChapter 9NCERT book: Our Wondrous World - EVS Class 5

Notes and a simple summary of Chapter 9 of the NCERT Class 5 The World Around Us book, with the official chapter PDF, flashcards, an MCQ quiz and an AI tutor for your doubts.

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Chapter 9: Rhythms of Nature

Introduction

Friends Saba and Aparna meet after a long time. "You are taller than me! And your hair is short now," says Saba. Aparna laughs – Saba has started learning the guitar! They talk about their old classroom and the new trees planted near the school gate. So much has changed since last year.

Changes are happening to us and to the world around us all the time. Some take years, some take days, and some happen in minutes!

This chapter helps us notice the patterns of change in nature – day and night, and the seasons.

What We Learn

1. Changes big and small

  • Over years: we grow taller; trees grow big.
  • Every year, again and again: leaves fall and grow back, flowers bloom and dry up.
  • In minutes or seconds: the colour of the sky at sunset, clouds moving.

    • 2. Day and night

  • The Sun seems to rise in the east, move across the sky and set in the west. But is the Sun really moving?
  • Activity 1 (game): One student is the 'Sun', another the 'Earth'. The 'Earth' slowly turns (rotates) and says "day… day…" while facing the Sun and "night… night…" when facing away.
  • Globe and torch: The torch is the Sun. The side of the globe where light falls has day; the dark side has night. As the globe rotates, places move from day to night.
    • The Sun stays in one place; it is the Earth that rotates. This causes day and night.
  • A globe is a ball-shaped model of the Earth. The blue parts are seas and oceans – they cover about three-fourth of the Earth. Seas are smaller and partly enclosed by land; oceans are vast and open.
  • Dong in Arunachal Pradesh is India's 'First Village of the Sunrise'.

    • 3. Seasons' journal and chart

  • All year students keep a Seasons' Journal, observing the same place once a term under five themes: plant life; birds and animals; air, heat and light; water and water bodies; human activities.
  • The class makes a wall chart with four time periods: April–June, July–September, October–December, January–March.
  • Groups make posters on one theme, then new groups write a short story about one time period.

    • 4. Discovering seasons

    The weather warms up, gets hot, then it rains, then it cools, and then it warms up again – every year. This repeating pattern is what we call seasons.

    In India we have six seasons (ritus):

  • Vasanta – Spring
  • Grishma – Summer
  • Varsha – Monsoon
  • Sharad – Autumn
  • Hemant – Pre-winter
  • Shishir – Winter

    • Seasons differ across India: winter in Kerala is not like winter in Kashmir, and the monsoon in Assam is different from Rajasthan. India has both one of the wettest places on Earth (Mawsynram, Meghalaya) and one of the driest (the Thar Desert).

    5. Celebrating seasons

  • Farmers grow different crops in different seasons – some in winter, some in summer, some in the rainy season.
  • Nature gives signs: in Odisha, when the koel sings, farmers know rain is coming; ants carrying eggs to higher ground also signal rain.
  • Festivals follow the seasons:

    • - Pongal / Makar Sankranti – winter

    - Holi – spring, when flowers bloom

    - Diwali – autumn, after crops are harvested

    - Baisakhi, Gudi Padwa, Vishu, Rongali Bihu – new year and harvest festivals

    Seasons give rhythm to our lives and remind us that change is natural and necessary.

    Activities in the Chapter

  • Grade 3 / 4 / 5 change table about yourself, school and surroundings
  • Sun–Earth day and night game; globe and torch demonstration
  • Seasons' Journal (four entries a year) and the classroom Seasons' Chart
  • Posters by theme and stories by time period
  • Festival–season matching

    • Key Words

  • Rotate / Rotation (घूर्णन) – spinning around itself
  • Globe (ग्लोब) – round model of the Earth
  • Ocean (महासागर), Sea (सागर)
  • Season (ऋतु / मौसम)
  • Monsoon (वर्षा ऋतु / मानसून)
  • Pattern (प्रतिरूप / क्रम) – something that repeats
  • Journal (दैनिकी / डायरी)
  • Harvest (फ़सल कटाई)
  • Crop (फ़सल)

    • Connect to Your Life

    What are the seasons called in your language? Which festival do you celebrate in which season? What clothes and food change with the seasons at home?

    Common Mix-ups

  • The Sun does not move across the sky – the Earth rotates.
  • India does not have only three seasons – traditionally there are six.
  • A sea is smaller and partly surrounded by land; an ocean is huge and open.

    • Let Us Reflect (exercise hints)

  • Why is winter in Kerala different from Kashmir? – Different places in India have different climates.
  • Fill the season table: for each season, note food, clothes, festivals and what nature looks like.
  • Comparative drawing: summer, monsoon and winter – show trees, sky, clothes and activities.

    • 💡 Key Learning Points

    • ✓Changes happen all the time – some over years, some every year, some in minutes.
    • ✓Day and night happen because the Earth rotates; the Sun only seems to move from east to west.
    • ✓Oceans and seas cover about three-fourth of the Earth; seas are smaller and partly enclosed by land.
    • ✓Seasons are a repeating yearly pattern; India traditionally has six: Vasanta, Grishma, Varsha, Sharad, Hemant, Shishir.
    • ✓Seasons shape crops, food, clothes and festivals, and they differ across regions of India.

    👨‍🏫 Teaching Tips

    • →Begin with the Grade 3–4–5 change table so students notice changes in themselves first.
    • →Play the Sun–Earth rotation game in the playground before the globe and torch demo.
    • →Darken the room for the torch-and-globe demonstration and mark India with a sticker.
    • →Start the Seasons' Journal early in the year; take students to the same spot each term.
    • →Build the classroom Seasons' Chart together and let groups present posters.
    • →Ask students to collect local season names and seasonal songs from family.
    • →Use a festival–season matching game to close the lesson.

    📋 Assessment Questions

    1. Can the student explain, using a globe and torch, why day and night happen?
    2. Can the student name the six Indian seasons with their English names?
    3. Can the student give an example of a change that takes years, one that repeats every year and one that takes minutes?
    4. Can the student match Pongal, Holi, Diwali and Baisakhi to their seasons?

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    Keep learning

    All chapters in Our Wondrous World - EVS Class 5

    1. 1. Water — The Essence of Life
    2. 2. Journey of a River
    3. 3. The Mystery of Food
    4. 4. Our School — A Happy Place
    5. 5. Our Vibrant Country
    6. 6. Some Unique Places
    7. 7. Energy — How Things Work
    8. 8. Clothes — How Things are Made
    9. 9. Rhythms of Nature
    10. 10. Earth — Our Shared Home