English: Class 7 — Chapter 3: Dreams and Discoveries

• Zero: A concept invented by ancient Indian mathematicians that adds value to numbers and is essential for modern digital calculations.
• Yoga: An ancient Indian practice focused on physical and mental well-being, now popular globally.
• Inventor Qualities: The introductory word grid highlights key traits of an inventor: Creativity, Curiosity, Risk-taking, Determination, and Imagination.

• Anand: A thirteen-year-old boy who thinks he is a scientist. He is creative, curious, and confident, but his inventions often cause chaos.
• Anita: Anand's fourteen-year-old sister who acts as the sensible, skeptical narrator. She tries to avoid responsibility for Anand's chaotic experiments.
• Papa & Ma: Supportive yet exasperated parents. Papa tries to curb Anand's destructive tinkering by locking up his tools.
• Boppa: The local compound sweeper who turns out to be a burglar.

Anand's first invention, a burglar alarm designed to drop a water bag on intruders, accidentally soaks his father. Undeterred, and inspired by the movie Back to the Future, Anand spends a fortnight building a "time machine" in his room using parts from household gadgets. When their parents leave for a wedding in Kharagpur, Anita and Anand are left home alone. That night, Boppa the thief breaks in and threatens them with a cudgel. Showing immense presence of mind, Anand misleads Boppa into entering his room (where the time machine is kept) instead of their father's room. Suddenly, loud noises, thumps, and an eerie whine emerge from the room. When neighbors arrive and unlock the house, Boppa is nowhere to be found; only his green scarf remains near the time machine's switch panel. Anand is convinced his time machine successfully sent Boppa into the past.

• racket: A loud and disturbing noise.
• sopping: Soaking wet.
• scowling: Having an angry or frowning expression.
• rigged up: Assembled something temporarily.
• tinkering: Experimenting or fiddling with gadgets.
• dynamos: Electric generators.
• stealthily: Quietly or carefully to avoid being seen or heard.
• sceptical: Doubtful.
• crestfallen: Sad and disappointed.
• ruffianly: Rough or violent-looking.
• cudgel: A short, thick stick used as a weapon.
• dismantled: Taken apart.

• Floating Dreams: Day by day, a child floats paper boats down a running stream, writing their name and village on them in big black letters, hoping someone in a far-off land will find them.
• Offerings of Purity: The child loads the boats with shiuli flowers from their garden, hoping these "blooms of the dawn" will land safely at night.
• Sky Playmates: Looking up, the child sees clouds shaped like bulging sails and imagines a playmate in the sky sending them down to race the boats.
• Fairies of Sleep: At night, the child dreams that their paper boats are floating under the stars, steered by the fairies of sleep carrying baskets full of dreams.

• Paper Boats: Symbolize the child's innocence, hopes, and messages sent out into the vast world.
• Shiuli Flowers: Represent purity, beauty, and the fresh start of a new day.
• Midnight Stars: Represent the vast, mysterious universe through which the child's dreams travel.

• Kashmir (30 April): Visited the Thajiwas glacier; experienced freezing cold, blue-white glaciers, and snowball fights.
• Himachal Pradesh (10 May): Enjoyed quiet mountains and colorful birds chirping.
• Arunachal Pradesh (17 May): Stayed in a treehouse surrounded by forests so thick one could get lost instantly.
• Sundarbans, West Bengal (24 May): Explored wetlands and mangrove forests growing in seawater; spotted crocodiles and snakes.
• Gujarat (30 May): Visited the hot, dry desert with vast stretches of sand and colorful local attire.
• Narmada River (7 June): Went river rafting in the fast, wild waters of central India.
• Goa (12 June): Admired the scenic plateaus, hills, beaches, and train tunnels.
• Chennai & Puducherry (17 June): Learned to surf on rough, brown waves.
• Pamban Bridge (22 June): Crossed the ocean on a train.
• Olaikaadu Beach (24 June): Floated in the water, watched fish, and collected smooth pebbles.

Onomatopoeia is the use of words that imitate the actual sounds they describe.

• Crash: A sudden loud sound of breaking.
• Humming: A continuous low and soothing sound.
• Hissed: Whispered angrily.
• Hammering, sawing, clattering: Constant and loud construction/working noises.

Binomials are expressions consisting of two words linked by a conjunction (usually 'and' or 'or') in a fixed order.

• Safe and sound: Out of danger and unharmed.
• Odds and ends: Miscellaneous small items.
• Make or break: Resulting in either total success or total failure.
• Pros and cons: Advantages and disadvantages.
• Now or never: The absolute last opportunity to take action.
• Give and take: Mutual compromise.

When talking about two completed actions in the past, we use the Past Perfect Tense (had + past participle) for the older action, and the Simple Past Tense for the more recent action.

• Example: Rohan had packed (older action) his suitcase before he left (recent action) for the airport.

• Compound Subjects: Subjects joined by 'and' take a plural verb (e.g., Amma and Appa are asleep).
• Indefinite Pronouns: Words like 'each', 'every', 'neither' take singular verbs (e.g., Each of the children was given a gift).
• Collective Nouns: Take a singular verb when acting as a single unit (e.g., The committee decides on the policy).
• Plural-Looking Nouns: Nouns ending in 's' but representing a single subject take a singular verb (e.g., Mathematics is interesting).
• 'Pair of' Nouns: Plural items preceded by 'a pair of' take a singular verb (e.g., A pair of sunglasses is essential).
• Proximity Rule ('or'/'nor'): The verb matches the subject closest to it (e.g., Neither the students nor the teacher wants to cancel the trip).