Difficult Questions

Why can some daytime-active animals see more colors than nocturnal ones?

What unusual behavior did tribes in the Andaman Islands observe before the 2004 tsunami?

How many trees does a sloth typically move through in its lifetime?

What are the main threats to tigers mentioned in the chapter?

Change to passive voice: “Ants follow the scent trail.”

Rewrite using a question tag: “Ants follow the scent trail, ___?”

What fraction of the day is the sloth awake if it sleeps 17 hours?

What term describes the ability to detect vibrations through touch or other receptors?

Why do birds like eagles and vultures have better long-distance vision?

What fraction of the day does the sloth spend sleeping if it sleeps 17 hours?

Identify the sentence that uses modal verbs in the chapter.

Which phrase shows the use of the continuous tense in the chapter?

Which suffix in the word ‘poisonous' changes the meaning to ‘full of poison'?

Which pronoun replaces ‘Aryanath and his cousins' in the sentence about forming a been party?

Which conjunction joins clauses in ‘We could help people even if doctors were far off'?

Which verb tense is used in ‘We used to move from village to village'?

Which sentence shows conditional mood in the chapter?

Which sentence shows the use of the perfect aspect?

Which part of speech is the word ‘special' in ‘I can do something special'?

Which word in the chapter is a collective noun for a group of snakes?

Why did food digest more slowly in the glass with juice than in Martin's stomach?

Which pair correctly matches food item and its stomach digestion time (Beaumont's table)?

Which question uses correct subject–verb agreement?

Which practice helps identify foods by smell alone?

Which of these did Dr. Beaumont NOT test in his glass experiment?

What effect does sadness have on digestion according to Beaumont's observations?

Select the correct passive voice form: “They gave Nitu a glucose drip.”

Which sentence is an example of a question tag?

Which sentence correctly uses the past perfect tense?

Which relative pronoun correctly completes: “The juice ___ he tested digested fish.”

Which of these is an example of past continuous tense from the chapter?

Which of these is NOT a pickle-related question in the chapter?

Which item was NOT included in the train travel packing list exercise?

Which question asks students to compare spoilage and wastage?

Identify the correct sequence for making mamidi tandra:

What grammatical tense is mainly used in the experiment instructions?

Which pronoun best replaces 'their mother' in 'their mother cooks unripe mangoes'?

What is the scientific term for seed germination?

On which day did sprouted plants show the greatest increase in height?

Which of these is NOT a seed dispersal method covered in the chapter?

What role does the seed coat play during germination?

Which element in soil do seeds NOT directly use during germination?

Why did the restored stepwell in Jodhpur become forgotten again?

Which issue did Punita's grandmother mention as a cause for wells drying up?

What environmental consequence results when soil is covered with cement?

Why is unequal distribution of water a social issue?

What feature of stepwells made them architectural marvels?

What modern problem arises from tapping directly into Jal Board pipelines?

How did villagers benefit economically after solving their water problem?

Which challenge was NOT mentioned as affecting water availability?

Why did some wells stop providing water according to the discussions?

Which design element ensured stepwells remained cool throughout the year?

What modern issue arises when drains and roads are built without considering water flow?

What is the best way to ensure accurate observations in a group experiment?

Which factor does NOT affect how quickly sugar dissolves?

Why might children describe density as 'thick' or 'heavy' instead of scientific terms?

What lesson about scientific thinking does Ayesha's soap and puri experiments illustrate?

Which statement best reflects a scientific conclusion from the chapter?

When heating a mixture of water and alcohol, which vapor escapes first?

Which of these is a physical change?

Why does a paper clip eventually sink if placed gently on water?

Why does hot water expand more than cold water?

In paper chromatography, which substance moves fastest up the paper?

Why does sound travel faster in solids than in liquids?

What currency was used to pay malaria patients for mosquito bites in Ross's experiments?

Name one plant that can grow in stagnant water beside drains.

Who should clean and maintain school drains to prevent mosquito breeding?

Identify the past tense verbs in this sentence: “They took 2–3 drops of blood.”

Which of these is a noun phrase from the first paragraph?

Find two adjectives used to describe the mosquitoes in Ross's experiments.

Rewrite in active voice: “Anaemic children are given iron tablets.”

Identify the direct speech in this sentence: “Who wants to play when you have fever!”

What did the instructor use to dig out buried climbers during the Everest storm?

How long did Bachhendri Pal stay at the summit of Mount Everest?

What role does discipline play in mountaineering, according to the narrator?

Which narrative technique is used when the author shares personal fear and triumph?

How many women were in the 18-member Everest expedition team?

Which peak height is given for Mount Everest in the chapter?

What lesson on teamwork can be inferred from the chapter?

What is the significance of pitching the national flag on Everest?

Which mountain height did the twelve-year-old schoolgirl originally climb?

Which modern assumption about electricity does the chapter ask students to consider?

What does the teacher note say about students' understanding of directions?

Why does the chapter title ‘Walls Tell Stories' make sense?

Which feature in Golconda shows advanced understanding of structural engineering?

Which feature of the fort's design allowed soldiers to smell approaching enemies in tunnels?

What critical thinking question asks why people attack and have wars?

Which water-lifting method is analogous to bicycle gears mentioned in the chapter?

Which feature of Golconda Fort's design demonstrates an understanding of acoustics?

What does the chapter suggest about the fort's role beyond defense?

In Magic 2, which object appears to lift the elephant?

What does NASA stand for?

Convert the question “Why don't we fall off?” into reported speech.

On 29 October, there was a difference in moonrise time compared to 28 October by:

Which term describes the curved path of the globe's lines of latitude?

Why did the coin and paper fall at the same speed when dropped together?

Which of these is a correct past participle from the chapter?

Which question did the chapter NOT explicitly ask readers to discuss?

In the experiment hiding the moon with a coin, approximately how many centimeters from the eye is the coin held?

How many hours of weaving are required to make one plain pashmina shawl?

How high is the Changthang plateau where Gaurav experienced difficulty breathing?

Why are Changpa tents dug two feet into the ground before erection?

Which factor does NOT influence house designs in Jammu and Kashmir as mentioned?

What feature makes pashmina wool ideal for shawls?

What protective feature did Changpa tents include to keep out icy winds?

Which question tests critical thinking about adaptation?

How were the walls of Changpa lekha constructed?

What tense is predominantly used in the TV report excerpt?

Which part of speech is the word “shaking” in the sentence “the ground was shaking”?

Which word in the sentence “Help! Save me!” is an imperative verb?

In the list “Dog To smell out where people are lying trapped”, what type of word is “to smell”?

Which word in “fear and the cold kept us awake” is a noun?

What grammatical mood is used in the instruction “Discuss and write”?

What rhetorical device is used in “Fear and the cold kept us awake”?

Which sentence contains a past participle?

What is the form of the verb “we mixed”?

Which word in “village women cooked food together” is an adjective?

What is the effect of personifying 'fear' in the sentence “Fear and the cold kept us awake”?

Which participle phrase describes ongoing action in “people running around in shock”?

Which direction does the snake move when hot air rises?

Why does the paper snake rotate anti-clockwise under a fan?

What phenomenon explains why we blow on dal, roti, and rice to cool them?

Which of these is NOT one of the ‘Do This' questions in the chapter?

Which grammatical tense is used when the woodcutter describes his routine?

What does Mian Balishtiye's reaction teach about first impressions?

Which of these is NOT part of the ‘Think and Tell' section?

Which experiment would best show that breath can be cooler than ambient air?

What structural feature distinguishes the story part from the activity sections?

What question could test understanding of convection from the chapter?

How does the story illustrate the principle of equilibrium in temperature?

Which grammatical tense is used in the question ‘Since when have you been doing this work?'

Hard question: Explain why shared cleaning tasks can reduce social barriers.

Hard question: Analyze how Narayan's conversation with Gandhiji influenced his later actions.

Fill in the blank: ‘Untouchability is a serious matter. Lot of hard work ____ required to change this.'

Which lesson can be drawn from Bhim Rao Ambedkar's childhood story?

Hard question: Discuss how childhood experiences shaped Ambedkar's fight against discrimination.

Hard question: Critique the effectiveness of Gandhi's method in breaking social norms through shared work.

Which question checks understanding of tense usage?

What was the main challenge the girls faced when playing with the state team?

Which metaphorical wall did Afsana jump over?

What does the term ‘gender bias' refer to in the context of the chapter?

What life lesson is emphasized by the girls' final remarks?

What does the phrase 'wall between her jhuggi and the local court' symbolize?

Which antonym best describes the team's behavior after a mistake?

Which proverb best matches the chapter's message about overcoming barriers?

Which sentence uses indirect speech to report the officials' promise?

What challenge did Sidya face after work and school?

Analyze why Jatrya's dream of modern village life did not materialize in Sinduri.

Which phrase best captures the irony in Jatrya's situation?

Evaluate the effectiveness of the chapter's conclusion about education.

Form a complex sentence using ‘although' based on Jatrya's experience.

Interpret the symbolic meaning of the ‘tin shed' house.

Discuss why Jatrya's relatives advised against repairing his shack.

What emotion does the lake evoke for Jatrya when he returns to Khedi?

Explain how community support differed between Khedi and Sinduri.

Which grammatical structure is used in ‘They would go to the forest'?

What was the consequence of growing the same crop repeatedly?

Why did farmers start using insecticides on their crops?

Which component of traditional farming was lost when using motor pumps?

What issue did farmers face when taking loans for farming?

What does the chapter suggest about monocropping?

What long-term risk is highlighted by the seed's monologue?

What critical question does the seed ask about progress?

What does the chapter list as an example of degraded soil?

What method is described as a technology for making dough?

What overarching question does the seed pose about the future of farming?

Which of these is NOT an activity at the Torang centre?

What is mixed cropping in jhoom farming?

What critical issue did Sikhya raise in her letter to the Chief Minister?

In direct speech, Suryamani says “You must learn to read the forest.” Convert this to indirect speech.

What does the word ‘inhibit' mean in the context of the contractor's orders?

Match the following: 1. Torang centre 2. Cheraw dance 3. Kuduk A. Language B. Community hub C. Cultural expression

What is the antonym of ‘derive' as used in ‘derive benefits from the forest'?

What does the term ‘usufruct rights' refer to in the Forest Rights Act?

What grammatical tense is used in: “The villagers had lived here for generations before the contractor arrived.”?

Which of these traits is influenced by both heredity and environment as per the chapter?

Why did Mendel's findings gain recognition only after his death?

Which characteristic of pebbles is analogous to Mendel's pea traits?

What inference can be made about the mukadam's role?

How does the text illustrate interdependence in the village economy?

What does Dhanu's attachment to his grandmother reveal about family ties?

Which method of irrigation is NOT mentioned by the teacher's notes?

Why might a teacher move with migrating families?

Which of these best summarizes the chapter's theme?

Which future solution involves the teacher's participation?

Which sentence best summarizes why sugarcane work is chosen?

What parallel can be drawn between sugarcane fields and village fields?

What theme does the chapter primarily explore?