Class 5 EVS Chapter 9 — Rhythms of Nature Notes & Summary
complete Class 5 EVS Chapter 9 — “Rhythms of Nature” Notes & Summary with concept-wise explanations.
Chapter 9 – Rhythms of Nature (Class 5 EVS Notes & Summary)
Our Wonderous World – The World Around Us
Chapter Overview
This chapter helps students understand how changes happen in nature and our lives, such as day and night, seasons, weather, and growth. It shows that change is a part of nature’s rhythm, and these changes repeat in patterns — giving us seasons and cycles of life.
Changes Around Us
Saba and Aparna meet after a year and notice changes in each other — they’ve grown, look different, and learned new things.
Similarly, our surroundings, school, and environment also change with time.
Concept Explanation:
- Change is a natural part of life.
- Some changes happen slowly (like growing up or tree growth).
- Others happen quickly (like day turning into night or flowers blooming).
- Changes happen to people, nature, and the environment.
Example Table: Changes Over Time
| Observation Area | Grade 3 | Grade 4 | Grade 5 |
|---|---|---|---|
| Yourself & Friends | Learning new skills | Growing taller | More responsible |
| School | New teachers | New classrooms | New plants/activities |
| Surroundings | Fewer trees | More buildings | Cleaner and greener environment |
Think & Write
- Something that takes a long time to change → Mountains forming, trees growing
- Changes within a few years → Buildings being built, children growing up
- Changes every year → Seasons, festivals, school exams
- Changes in minutes or seconds → Weather, sky color during sunset, switching on light
Do You Know?
- India celebrates over 1,000 festivals throughout the year — one of the most festive nations in the world.
- Dong (Arunachal Pradesh) is India’s first village to see the sunrise every day.
Changes Around Us in a Day – Day and Night
Concept Explanation:
- The Sun appears to move across the sky from east to west, but it is actually the Earth rotating on its axis.
- Day occurs on the side of the Earth facing the Sun.
- Night occurs on the side away from the Sun.
Activity (Understanding Rotation):
- A student acts as Earth and another as Sun.
- When facing the “Sun,” the student says “day”; when turned away, says “night.”
- This shows that Earth’s rotation causes day and night, not Sun’s movement.
Demonstration Using Globe & Torch:
| Step | Observation |
|---|---|
| 1 | Torch = Sun; Globe = Earth |
| 2 | Torchlight on one side shows day |
| 3 | The dark side shows night |
| 4 | When the globe rotates, different parts face light, showing day and night cycle |
Do You Know?
- A globe is a mini model of Earth.
- About three-fourths (¾) of Earth’s surface is covered with water (seas and oceans).
- Seas are smaller and surrounded by land; Oceans are vast and open water bodies.
Find Out
When it is daytime in India, it is night in countries on the opposite side of Earth — for example, the United States, Canada, and Brazil.
Do You Know?
- In Odisha, when the koel (cuckoo) sings, it means rain is coming — a natural weather signal!
Changes Around Us in a Year (Seasons)
Concept Explanation:
- The Earth not only rotates but also revolves around the Sun.
- This revolution causes changes in seasons throughout the year.
- Nature follows a rhythm — changes in temperature, rainfall, sunlight, and human activity.
Classroom Activity – Seasons’ Chart
| Theme | April–June | July–Sept | Oct–Dec | Jan–Mar |
|---|---|---|---|---|
| Plant life | New leaves, flowers | Green trees | Leaves fall | Few flowers |
| Birds & animals | Birds nesting | Many insects | Migrating birds | Hibernating animals |
| Air, heat & light | Hot and dry | Humid and cloudy | Cool breeze | Cold and foggy |
| Water & water bodies | Dry rivers | Heavy rains | Clear ponds | Frozen water (in cold areas) |
| Human activities | Summer holidays | Farmers sow crops | Harvest festivals | Wearing woolens |
Do You Know?
- Mawsynram (Meghalaya) is the wettest place on Earth.
- Thar Desert (Rajasthan) is one of the driest places in the world.
Discovering Seasons
Concept Explanation:
- Seasons are natural repeating patterns that occur every year.
- The cycle of warming, rain, and cooling repeats.
- These changes are regular and predictable — Spring, Summer, Monsoon, Autumn, Pre-winter, Winter.
Six Indian Seasons:
| Sanskrit Name | English Name | Common Months (Approx.) |
|---|---|---|
| Vasanta | Spring | Feb–Apr |
| Grishma | Summer | Apr–Jun |
| Varsha | Monsoon | Jun–Sep |
| Sharad | Autumn | Sep–Nov |
| Hemant | Pre-winter | Nov–Dec |
| Shishir | Winter | Dec–Feb |
Do You Know?
- During monsoon, snakes come out of flooded burrows — hence Nag Panchami is celebrated to honor them.
- When ants carry eggs to higher ground, it’s a sign of approaching rain.
Discuss:
- Winter in Kerala (mild) differs from winter in Kashmir (very cold).
- Monsoon in Assam (heavy rain) differs from Rajasthan (light rain).
These differences occur due to geographical location, altitude, and distance from the sea.
Celebrating Seasons
Concept Explanation:
- India’s festivals and crops are closely connected to seasons.
- Farmers grow different crops depending on climate and rainfall.
- Songs and traditions celebrate nature’s rhythm and farming cycles.
Seasonal Crops Example
| Summer Crops | Winter Crops |
|---|---|
| Rice, Maize, Sugarcane | Wheat, Mustard, Barley |
Festivals and Seasons
| Festival | Season |
|---|---|
| Pongal, Makar Sankranti | (c) New Year and Harvest Festival |
| Holi | (a) Spring – when flowers bloom |
| Diwali | (b) Autumn – after crops are harvested |
| Baisakhi, Gudi Padwa, Vishu, Rongali Bihu | (d) Winter |
Do You Know?
Seasons affect what we eat, wear, celebrate, and do.
They give rhythm and pattern to life, showing how all living things are connected to nature’s cycles.
Let Us Reflect
| Question | Reflection Answer |
|---|---|
| 1. Describe your experience of changing seasons. | I enjoy watching trees bloom in spring, rains in monsoon, and cool winds in winter. |
| 2. Do seasons feel different now compared to your parents’ time? | Yes, summers feel hotter and winters shorter — due to pollution and global warming. |
| 3. Local names for seasons | Vasant (Basant), Grishma (Garmi), Varsha (Barsaat), Sharad (Patajhad), Hemant (Seetkal), Shishir (Thand). |
| 4. Table of food, clothes, festivals, nature | Students fill based on local observation. |
| 5. Share your experience | Keeping a season journal helps me notice nature’s changes. |
| 6. Drawing Activity | Draw differences between Summer, Monsoon, and Winter. |
Short Summary of Chapter 9 – Rhythms of Nature
| Concept | Key Idea |
|---|---|
| Changes Around Us | Everything around us keeps changing — people, plants, and environment. |
| Day and Night | Caused by Earth’s rotation on its axis. |
| Seasons | Caused by Earth’s revolution around the Sun. |
| Patterns in Nature | Seasons follow a natural rhythm that repeats every year. |
| Festivals and Crops | Closely linked to seasonal changes. |
| Learning from Nature | Change is constant, beautiful, and necessary. It teaches us to adapt. |
Other Important Notes Related to This Chapter
NCERT Question Answer Solution Class 5 chapter 9 – Rhythms of Nature
CBSE Summary Notes Chapter 9 – Rhythms of Nature
Extra Questions Answers Chapter 9 – Rhythms of Nature
Practice Worksheet Chapter 9 – Rhythms of Nature