NCERT Solutions for Class 5th The World Around Us Chapter 9 Rhythms of Nature
Updated on 2026-09-19
About this chapter
Everything around us keeps changing. Look at the four trees on page 148. They are the same tree drawn four times — full green, then yellow with leaves falling, then covered in orange flowers, then bare. Some changes are slow, like a tree growing tall or a hill wearing down. Some are quick, like a cloud crossing the sun or a soap bubble bursting. You yourself changed between Grade 3 and Grade 5 — you grew taller, your handwriting improved, you made new friends. Some changes come back again and again. Day turns into night, and night turns back into day. Leaves fall and grow again. Flowers bloom, dry up and bloom again. A change that repeats in the same order, over and over, is called a rhythm — a pattern in nature. This chapter is about two such rhythms: the rhythm of a day and the rhythm of
- Saba and Aparna meet after a year
- How long does a change take?
- Changes Around Us in a Day (Day and Night)
- Day and Night
- Study the globe
- Bringing a whole year of observations onto one chart
- Discovering Seasons
- The six seasons and their months
- How does a change of season feel?
- The same season, different places
Quick revision
| Word | What it means | Where it appears | An everyday example |
|---|---|---|---|
| Change | Something becoming different from what it was before | Page 148, the four trees | You are taller now than in Grade 3 |
| Rhythm (pattern) | Something that happens again and again in the same order | Discovering Seasons, page 155 | Day, night, day, night… |
| Rotation | The Earth turning round on itself, once in about 24 hours | Activity 1, page 150 | A spinning top, or a merry-go-round |
| Axis | The imaginary line through the middle of the Earth that it turns around | Demonstration, page 150 | The metal rod through the middle of a school globe |
| Day | The time when your side of the Earth is facing the Sun and getting its light | Page 150 | From sunrise to sunset |
| Night | The time when your side of the Earth has turned away from the Sun | Page 150 | From sunset to sunrise |
| Globe | A small round model of the Earth | Do you know?, page 151 | The globe kept in the classroom |
| Ocean | A very large, open body of salty water; a sea is smaller and partly closed in by land | Do you know?, page 151 | The blue parts of the globe |
| Season | A part of the year with its own kind of weather, which comes back every year | Discovering Seasons, page 155 | The monsoon, which returns every June–July |
| Seasons' journal | A notebook in which you write what you notice in nature through the year | Seasons' Journal, page 151 | Saba and Aparna's journals |
| Migratory birds | Birds that fly a long way to another country for one season and go back later | Seasons' chart, autumn observations | Cranes and ducks at a lake in winter |
| Harvest | Cutting and gathering a crop when it is ripe and ready | Festival table, page 158 | Pongal, after the rice is harvested |
| Revolution | The Earth's one full round trip around the Sun, which takes one year | Not printed in the chapter — it is the reason the seasons come back | Your birthday comes once every round trip |
Exercises
- Saba and Aparna meet after a year — Write Page 147
- How long does a change take? — Write Page 148–149
- Changes Around Us in a Day (Day and Night) — In-text Questions Page 149
- Day and Night — Activity 1 Page 150
- Study the globe — Find out Page 151
- Bringing a whole year of observations onto one chart — Classroom Activity — Seasons' Chart Page 152–155
- Discovering Seasons — In-text Questions Page 155
- The six seasons and their months — Seasons of India Page 156
- How does a change of season feel? — Write Page 157
- The same season, different places — Discuss Page 157
- Songs of the seasons, and the crops of each season — Celebrating Seasons Page 157
- Match the festivals to the season they are celebrated in — Festivals and Seasons Page 158
- Closing questions — Let us reflect Page 159–160