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Class 6 Science question answer: all 12 chapters of Curiosity, with practice

CMDLearn · 4 November 2026

In short: this page lists all 12 chapters of the NCERT Class 6 Science textbook Curiosity (Reprint 2026-27) in the book's order, with the page each chapter starts on and our questions-with-answers guide for it. At the end are 8 quick questions, one idea each from eight chapters, to check yourself before you open a chapter guide.

The questions on this page and in the chapter guides are our own, drafted with AI help. Every answer was checked against the textbook pages named under it, but no practising teacher has reviewed them yet. If you find a mistake, please tell us.

All 12 chapters

The chapter titles and start pages are from the contents page of Curiosity, the NCERT Science textbook for Grade 6 (Reprint 2026-27).

Looking for an old chapter name, such as "Components of Food" or "Fun with Magnets"? Our Class 6 old chapter names guide shows which Curiosity chapter now covers it.

How to use these guides

1. Do the chapter's activities first. Curiosity teaches through activities; read the chapter and try them, then open our guide.
2. Try each question on paper before you open the answer, and go back to the textbook page named under the answer if you got it wrong.
3. Practise more with the free questions marked in your browser and the printable worksheets linked at the end of this page.

8 quick questions to check yourself

Question 1 (Chapter 2). In a banana leaf, the veins run side by side along the leaf. What kind of roots would you expect a banana plant to have, and is it a monocot or a dicot?

Answer: fibrous roots; a monocot. The chapter links the two: monocot plants have parallel veins in their leaves and fibrous roots, while dicots have a net of veins and a taproot. It shows the banana leaf as an example of parallel veins. (Banana leaf, page 17; monocots and dicots, page 20.)

Question 2 (Chapter 3). Two or three drops of diluted iodine solution are put on a small piece of chapati, and it turns blue-black. Which nutrient does this show, and to which group of foods does that nutrient belong?

Answer: starch, a type of carbohydrate, so the chapati is an energy-giving food. A blue-black colour with iodine shows that starch is present, and carbohydrates and fats give us energy for our activities. (Test for starch, page 48; energy-giving foods, page 41.)

Question 3 (Chapter 4). A magnet is moved over a tray holding an iron nail, a glass marble, a wooden spoon, a plastic comb and a cotton thread. Which of them will be pulled to the magnet? What are the others called?

Answer: only the iron nail; the others are non-magnetic materials. Iron is a magnetic material. Glass, wood, plastic and cotton are not attracted towards a magnet. (Magnetic and non-magnetic materials, page 64.)

Question 4 (Chapter 5). Name the type of motion in each: (a) a stone tied to a string and whirled round above your head; (b) a child going to and fro on a swing; (c) a bus on a straight stretch of highway.

Answer: (a) circular, (b) oscillatory, (c) linear. The stone moves along a circular path, the swing moves to and fro about a fixed position, and the bus moves along a straight line. (Linear and circular motion, page 92; oscillatory motion, page 93.)

Question 5 (Chapter 7). A clinical thermometer shows 38.4 °C for a child with a cold. By how much is this above the normal body temperature the chapter gives?

Answer: by 1.4 °C. Normal body temperature is taken as 37.0 °C, and 38.4 − 37.0 = 1.4. The chapter adds that 37.0 °C is an average of many healthy people, so a healthy person's own normal can be a little different. (Normal body temperature, page 128.)

Question 6 (Chapter 10). Put these stages in the life of a pea plant in order, starting from the seed that is sown: (a) flowers appear; (b) the seed germinates; (c) pods with new seeds form; (d) leaves appear. What can the seeds in the pods then do?

Answer: seed, then (b), (d), (a), (c). The seed germinates, the young plant grows leaves, then flowers, and then fruits (here pods) with seeds inside. Sown, those seeds grow into the next generation of pea plants. The whole journey from a seed to a plant and on to new seeds is the life cycle of a plant. (Life cycle of a plant, pages 195 and 196.)

Question 7 (Chapter 11). Which gas makes up the largest part of the air, and about how many times as much of it is there as oxygen?

Answer: nitrogen, almost four times as much. Air is about 78% nitrogen and 21% oxygen, and 78 ÷ 21 is about 3.7. (Air, page 209.)

Question 8 (Chapter 12). Most asteroids move around the Sun between the paths of two planets. Which two planets are they, and which of the two is nearer to the Sun?

Answer: Mars and Jupiter; Mars is nearer. Counting outwards from the Sun, Mars is the fourth planet, just beyond the Earth, and Jupiter is the fifth, the first of the four giant planets. (The planets, pages 241 and 242; asteroids, page 245.)

Practise more

• Free practice, marked instantly in your browser: practice by chapter, and printable worksheets with answer keys: Class 6 worksheets.
• Class 6 Maths, chapter by chapter, in the same style: start with Patterns in Mathematics.
• In Hindi: Chapter 9, दैनिक जीवन में पृथक्करण विधियाँ, notes and 8 questions with answers.

Where CMDLearn fits

CMDLearn is building an AI tutor for Classes 1 to 10 that explains a step and checks the child's working, but leaves the writing to the child. It is still in development, and no child uses it yet. If you would like to hear when there is something to try, you can join the waitlist.

Sources

All opened and read on 4 November 2026. Page numbers are the printed page numbers of the textbook.

• NCERT, Curiosity, Science textbook for Grade 6 (Reprint 2026-27), front matter and contents (chapter titles and start pages): ncert.nic.in/textbook/pdf/fecu1ps.pdf
• NCERT, Curiosity, Chapters 2, 3, 4, 5, 7, 10, 11 and 12, the pages named under each answer above: ncert.nic.in/textbook/pdf/fecu102.pdf, fecu103.pdf, fecu104.pdf, fecu105.pdf, fecu107.pdf, fecu110.pdf, fecu111.pdf and fecu112.pdf at the same address

The chapter titles, page numbers and facts are from the textbook pages above. The questions and answers are our own, and every number was re-checked by script. This guide is general information; follow your teacher and the textbook.

Practise this class: Class 6 worksheets, chapter by chapter · free practice, marked instantly