Class 5 EVS Chapter 9 Solutions: Rhythms of Nature

NCERT Solutions Class 5 Our Wondrous World Chapter 9 Rhythms of Nature (2025-26)

Write

Try to remember the time you were in Grades 3 and 4. Think and write about the changes that you have noticed in yourself and your friends, in your school, and in your environment.

• 1. Can you think of something that takes a really long time to change, maybe over years?
  Answer: Growth of a big tree or construction of a large building.
• 2. What about something that changes within just a few years?
  Answer: School facilities, friends’ hobbies or interests.
• 3. Are there changes that happen every year, again and again?
  Answer: Seasons, festivals, our birthday celebrations.
• 4. Can you name something that changes in just a few minutes or even seconds?
  Answer: The colour of the sky at sunrise or sunset, changes in traffic signals.

Changes Around Us in a Day (Day and Night)

What causes day and night?

Answer: Day and night are caused by the rotation of the Earth on its axis. When our part of the Earth faces the Sun, it is day. When it turns away, it is night.

Activity 1: Demonstration — Day and Night

1. Place a globe on a table and flash a torch on one side. The torchlight represents the Sun. The side where the light falls is day, the side with no light is night.
2. Rotation — Slowly rotate the globe while keeping the torch steady.
3. Observe how different parts of the globe face the light as it rotates.

Answer (Observation): The side facing the light experiences day, while the opposite side has night. As the globe rotates, different areas move from night to day and day to night. This shows the Earth rotates to cause day and night.

Find out: Study the globe and write in the space given below: when it is day time in India, which countries will have night?

Answer: When it is daytime in India, countries like the United States of America, Canada, and Brazil (located on the western side of the globe from India) will have night.

Changes Around Us in a Year (Seasons)

What are the seasons called in your region?

Write

How do you feel when the season changes? Would you prefer one season to continue throughout the year? Give the reasons for your answer.

Answer: I enjoy the changes when seasons shift; each brings something special like flowers in spring, rains in monsoon, and cold evenings in winter. I would not want only one season because then life would be boring and we would miss other joys.

Discuss

Winter in Kerala is different from winter in Kashmir valley. Monsoon in Assam is different from Rajasthan. Why do you think it is so?

Answer: Different places have different climates due to their location, altitude, and nearness to the sea. For example, Kerala is near the sea and has milder winters, while Kashmir is at a higher altitude and is colder. Assam gets heavy rainfall, but Rajasthan is dry and gets less rain.

Celebrating Seasons

With the help of your teacher and elders, name the crops that grow in summer and winter in your region.

See if you can match these festivals to the season they are celebrated in!

Let us Reflect

1. Narrate your experiences about the season changes.
   Answer: I notice days are longer in summer, and it’s hotter. During monsoon, it often rains and everything looks fresh. In winter, mornings are cold and sometimes foggy. I enjoy all these different experiences.
2. Ask your family members and write about seasons. Do you find any major differences in the patterns or changing seasons? What could be possible reasons for these differences?
   Answer: My parents say winters are less cold and summers are hotter than before. Crops do not grow as well. Main reasons can be cutting down trees, pollution, and global warming.
3. Seasons have local names. Find out and write the seasons mentioned below are called in your region, and your local language.
   (a) Spring: __________
   (b) Summer: __________
   (c) Monsoon: __________
   (d) Autumn: __________
   (e) Pre-winter: __________
   (f) Winter: __________
   Answer (Sample, Hindi):
   (a) Spring: Basant
   (b) Summer: Garmi
   (c) Monsoon: Barsaat
   (d) Autumn: Patjhad
   (e) Pre-winter: Hemant
   (f) Winter: Jaada
   
4. Fill the table below based on your observations and experiences.
   

   Name of the Season	Food You Eat	Clothes You Wear	Festivals You Celebrate	Nature Around You
   Spring	Fresh vegetables, fruits	Light comfortable clothes	Holi	Flowers bloom
   Summer	Watermelon, mangoes	Cotton clothes, shorts	Summer vacations	Trees are green, hot weather
   Monsoon	Pakoras, tea	Raincoats, umbrellas	Raksha Bandhan	Lush greenery, rain
   Autumn	Rice, and new grains	Semi-warm clothes	Diwali	Some trees shed leaves
   Pre-winter	Dry fruits, warm soup	Light woolens	Bhai Dooj	Cooler mornings
   Winter	Hot chocolate, parathas	Woolen sweaters, jackets	Christmas, Lohri, Makar Sankranti	Cold wind, foggy mornings

5. Share your experience of seasons’ journaling.
   Answer: I enjoyed writing in my journal and observing changes in plants, animals, and weather each month. It helped me notice new things around me.
6. Make a comparative drawing of the three major seasons:
   Summer    Monsoon    Winters
   Answer: (Students should make three drawings showing the differences, e.g., bright sun and sweating people for summer, rain and umbrellas for monsoon, people in warm clothes for winter.)

Rhythms of Nature: Class 5 EVS Chapter 9

Understanding the rhythms of nature is key to scoring well in NCERT Class 5 Our Wondrous World Chapter 9. Focusing on seasonal changes and daily cycles helps students relate science concepts to daily life and boosts retention for exams.

This chapter explores day and night, seasons, and life’s changes through stories and hands-on activities. Using these NCERT-based concepts, students can strengthen their observation skills and develop a deeper understanding of their environment.

Practice answering all exercise questions and keep a nature journal. Reviewing patterns in nature and seasonal festivals will help you excel in your EVS exam and make your learning interesting and practical!