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Class 4 English - Lesson 13: The Wizard Who Lit Up the World.


Welcome to PoraGhar Axom! Here you will find the most accurate and complete notes for Assam Jatiya Bidyalay Class 4 English - Lesson 13: The Wizard Who Lit Up the World. In this post, we provide a line-by-line Assamese translation, word meanings, textbook solutions, and grammar exercises (Prepositions) to help you score 90%+ in your exams.

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Did You Know? (āĻ•িāĻŦা āϜাāύাāύে?)

Thomas Alva Edison tried thousands of different materials before finding the perfect filament for his light bulb. He even tested materials like cotton thread and bamboo fiber before finding one that glowed without burning out quickly!

📖 Quick Chapter Summary

This lesson tells the inspiring story of Thomas Alva Edison, one of the greatest scientists in the world. As a child named "Al," he was considered a slow learner and was pulled out of school. However, his mother homeschooled him, and his curiosity led him to read widely and conduct experiments. Through immense hard work and after failing thousands of times, he invented life-changing devices like the phonograph and the electric light bulb. He proved that true genius comes from hard work, saying: "Genius is 1% inspiration and 99% perspiration."

1. Lesson Text & Translation (āĻĒাāĻ ā§° āĻ…āύুāĻŦাāĻĻ)

The Wizard Who Lit Up the World

āϜāĻ—āϤ āĻĒোāĻšā§°োā§ąা āϝাāĻĻুāϕ⧰āϜāύ

(Can you imagine your life without the light bulb that you are using at your home or school?

(āϤুāĻŽি āϘ⧰āϤ āĻŦা āĻŦিāĻĻ্āϝাāϞāϝ়āϤ āĻŦ্āĻ¯ā§ąāĻšাā§° āϕ⧰ি āĻĨāĻ•া āϞাāχāϟ āĻŦাāϞ্āĻŦāϟোā§° āĻ…āĻŦিāĻšāύে āϤোāĻŽাā§° āϜীā§ąāύ⧰ āĻ•āĻĨা āĻ•āϞ্āĻĒāύা āϕ⧰িāĻŦ āĻĒাā§°িāĻŦাāύে?

Without the light bulb, we would still be using candles and lanterns like the people did many years ago.

āϞাāχāϟ āĻŦাāϞ্āĻŦ āύোāĻšোā§ąা āĻš'āϞে, āφāĻŽি āĻāϤিāϝ়াāĻ“ āĻŦāĻšু āĻŦāϛ⧰ āφāĻ—ā§° āĻŽাāύুāĻšā§° āĻĻā§°ে āĻŽāĻŽāĻŦাāϤি āφ⧰ু āϞেāĻŽ āĻŦ্āĻ¯ā§ąāĻšাā§° āϕ⧰িāϞোঁāĻšেঁāϤেāύ।

Life would be very hard, right?

āϜীā§ąāύāϟো āĻŦā§° āĻ•āĻ িāύ āĻš'āϞāĻšেঁāϤেāύ, āύāĻšāϝ়āύে?

Do you know who invented the light bulb?

āϤুāĻŽি āϜাāύাāύে āϞাāχāϟ āĻŦাāϞ্āĻŦ āĻ•োāύে āĻ†ā§ąিāώ্āĻ•াā§° āϕ⧰িāĻ›িāϞ?

Well, today we are going to talk about the person who invented the light bulb and many other things.)

āĻŦাā§°ু, āφāϜি āφāĻŽি āϞাāχāϟ āĻŦাāϞ্āĻŦ āφ⧰ু āφāύ āĻŦāĻšুāϤো āĻŦāϏ্āϤু āĻ†ā§ąিāώ্āĻ•াā§° āϕ⧰া āĻŦ্āϝāĻ•্āϤিāϜāύ⧰ āĻŦিāώāϝ়ে āĻ•āĻĨা āĻĒাāϤিāĻŽ।)

At a place named Milan in Ohio, USA, there lived a couple named Samuel and Nancy.

āφāĻŽেā§°িāĻ•া āϝুāĻ•্āϤ⧰াāώ্āϟ্ā§°ā§° āĻ…āĻšিāĻ…'ā§° āĻŽিāϞাāύ āύাāĻŽā§° āĻāĻ–āύ āĻ াāχāϤ āϚেāĻŽুā§ąেāϞ āφ⧰ু āύেāύ্āϏি āύাāĻŽā§° āĻāĻšাāϞ āĻĻāĻŽ্āĻĒāϤী āĻŦাāϏ āϕ⧰িāĻ›িāϞ।

On 11 February 1847, their youngest son Al was born.

ā§§ā§Žā§Ēā§­ āϚāύ⧰ ā§§ā§§ āĻĢেāĻŦ্ā§°ুā§ąাā§°ীāϤ āϤেāĻ“ঁāϞোāϕ⧰ āĻ•āύিāώ্āĻ  āĻĒুāϤ্ā§° āφāϞ⧰ āϜāύ্āĻŽ āĻšৈāĻ›িāϞ।

Al could not do well in his studies.

āφāϞ āĻĒāĻĸ়া-āĻļুāύাāϤ āĻ­াāϞ āύাāĻ›িāϞ।

He was a slow learner.

āϏি āϞাāĻšে āϞাāĻšে āĻļিāĻ•া āϞ'ā§°া āφāĻ›িāϞ।

His teachers said that he was 'too stupid to learn anything.'

āϤাā§° āĻļিāĻ•্āώāĻ•āϏāĻ•āϞে āĻ•ৈāĻ›িāϞ āϝে āϏি 'āĻāĻ•ো āĻļিāĻ•িāĻŦ āύোā§ąাā§°া āĻŦিāϧ⧰ āĻŽূā§°্āĻ–'。

Al's mother Nancy was disheartened by the teachers' opinion about her son.

āφāϞ⧰ āĻŽাāϤৃ āύেāύ্āϏি āύিāϜ⧰ āĻĒুāϤ্ā§°ā§° āĻĒ্ā§°āϤি āĻļিāĻ•্āώāĻ•āϏāĻ•āϞ⧰ āĻŽāϤাāĻŽāύ āĻĻেāĻ–ি āĻšāϤাāĻļ āĻšৈāĻ›িāϞ।

So, just after 12 weeks of school, she decided to pull Al off from school.

āϏেāϝ়েāĻšে, āĻŽাāϤ্ā§° ⧧⧍ āϏāĻĒ্āϤাāĻš āĻŦিāĻĻ্āϝাāϞāϝ়āϞৈ āϝোā§ąাā§° āĻĒিāĻ›āϤ, āϤাāχ āφāϞāĻ• āĻŦিāĻĻ্āϝাāϞāϝ়ā§° āĻĒā§°া āĻā§°ুā§ąাāχ āĻ…āύাā§° āϏিāĻĻ্āϧাāύ্āϤ āϞ'āϞে।

Being a school teacher herself, she began home-schooling him.

āϤাāχ āύিāϜেāχ āĻāĻ—ā§°াāĻ•ী āĻŦিāĻĻ্āϝাāϞāϝ়ā§° āĻļিāĻ•্āώāϝ়িāϤ্ā§°ী āĻšোā§ąাā§° āĻŦাāĻŦে, āϤাāχ āϤাāĻ• āϘ⧰āϤে āĻĒāĻĸ়াāĻŦāϞৈ āφ⧰āĻŽ্āĻ­ āϕ⧰িāϞে।

Nancy taught Al reading, writing and arithmetic.

āύেāύ্āϏিāϝ়ে āφāϞāĻ• āĻĒāĻĸ়া, āϞিāĻ–া āφ⧰ু āĻ…ংāĻ• āĻļিāĻ•াāχāĻ›িāϞ।

Al learned to be independent at a young age.

āφāϞে āϏ⧰ু āĻŦāϝ়āϏāϤে āϏ্āĻŦাā§ąāϞāĻŽ্āĻŦী āĻš'āĻŦāϞৈ āĻļিāĻ•িāĻ›িāϞ।

He started selling newspapers to the passengers of the Grand Trunk Railroad line at the age of 12.

āϏি ⧧⧍ āĻŦāϛ⧰ āĻŦāϝ়āϏāϤে āĻ—্ā§°েāĻŖ্āĻĄ āϟ্ā§°াংāĻ• ā§°েāĻ˛ā§ąে āϞাāχāύ⧰ āϝাāϤ্ā§°ীāϏāĻ•āϞāĻ• āĻŦাāϤ⧰িāĻ•াāĻ•āϤ āĻŦিāĻ•্ā§°ী āϕ⧰িāĻŦāϞৈ āφ⧰āĻŽ্āĻ­ āϕ⧰িāĻ›িāϞ।

Later, he published a newspaper named the Grand Trunk Herald.

āĻĒিāĻ›āϞৈ, āϏি āĻ—্ā§°েāĻŖ্āĻĄ āϟ্ā§°াংāĻ• āĻšেā§°াāϞ্āĻĄ āύাāĻŽā§° āĻāĻ–āύ āĻŦাāϤ⧰িāĻ•াāĻ•āϤ āĻĒ্ā§°āĻ•াāĻļ āϕ⧰িāĻ›িāϞ।

Al did not only sell newspapers on the train.

āφāϞে āĻ•েā§ąāϞ ā§°েāϞāϤ āĻŦাāϤ⧰িāĻ•াāĻ•āϤ āĻŦিāĻ•্ā§°ী āϕ⧰াāχ āύাāĻ›িāϞ।

He also set up a laboratory in one of the baggage cars of the train.

āϏি ā§°েāϞāĻ–āύ⧰ āĻāϟা āĻŽাāϞāĻŦাāĻšী āĻĄāĻŦাāϤ āĻāϟা āĻĒā§°ীāĻ•্āώাāĻ—াā§°ো āϏ্āĻĨাāĻĒāύ āϕ⧰িāĻ›িāϞ।

There he used to conduct chemical experiments.

āϤাāϤ āϏি ā§°াāϏাāϝ়āύিāĻ• āĻĒā§°ীāĻ•্āώা-āύিā§°ীāĻ•্āώা āϕ⧰িāĻ›িāϞ।

One day, because of one failed experiment the baggage car caught fire.

āĻāĻĻিāύ, āĻāϟা āĻŦিāĻĢāϞ āĻĒā§°ীāĻ•্āώাā§° āĻŦাāĻŦে āĻŽাāϞāĻŦাāĻšী āĻĄāĻŦাāϟোāϤ āϜুāχ āϞাāĻ—িāϞ।

The conductor became angry and threw him off the train.

āĻĒā§°িāϚাāϞāĻ•āϜāύ⧰ āĻ–ং āωāĻ িāϞ āφ⧰ু āϤাāĻ• ā§°েāϞ⧰ āĻĒā§°া āĻĒেāϞাāχ āĻĻিāϞে।

This affected his already weak hearing ability.

āχāϝ়াā§° āĻĢāϞāϤ āϤাā§° āφāĻ—ā§°ে āĻĒā§°া āĻĻুā§°্āĻŦāϞ āĻļ্ā§°ā§ąāĻŖ āĻļāĻ•্āϤিāϤ āĻĒ্ā§°āĻ­াā§ą āĻĒā§°িāϞ।

Though Al was not good at studies, he was very much interested in reading books.

āϝāĻĻিāĻ“ āφāϞ āĻĒāĻĸ়া-āĻļুāύাāϤ āĻ­াāϞ āύাāĻ›িāϞ, āϏি āĻ•িāϤাāĻĒ āĻĒāĻĸ়াāϤ āĻŦāĻšুāϤ āφāĻ—্ā§°āĻšী āφāĻ›িāϞ।

He used to read a wide range of books on different subjects.

āϏি āĻŦিāĻ­িāύ্āύ āĻŦিāώāϝ়ā§° āĻ“āĻĒā§°āϤ āĻŦāĻšুāϤো āĻ•িāϤাāĻĒ āĻĒāĻĸ়িāĻ›িāϞ।

This habit helped him understand various things and also made him curious to know more.

āĻāχ āĻ…āĻ­্āϝাāϏে āϤাāĻ• āĻŦিāĻ­িāύ্āύ āĻŦāϏ্āϤু āĻŦুāϜাāϤ āϏāĻšাāϝ় āϕ⧰িāĻ›িāϞ āφ⧰ু āϞāĻ—āϤে āĻ…āϧিāĻ• āϜাāύিāĻŦāϞৈ āĻ•ৌāϤূāĻšāϞী āϕ⧰ি āϤুāϞিāĻ›িāϞ।

He also loved to do different experiments.

āϏি āĻŦিāĻ­িāύ্āύ āĻĒā§°ীāĻ•্āώা-āύিā§°ীāĻ•্āώা āϕ⧰িāĻŦāϞৈāĻ“ āĻ­াāϞ āĻĒাāχāĻ›িāϞ।

He realized the need for new technology in the world.

āϏি āĻĒৃāĻĨিā§ąীāϤ āύāϤুāύ āĻĒ্ā§°āϝুāĻ•্āϤিā§° āĻĒ্ā§°āϝ়োāϜāύীāϝ়āϤা āωāĻĒāϞāĻŦ্āϧি āϕ⧰িāĻ›িāϞ।

This curiosity and hunger for knowledge eventually made Al one of the greatest scientists of the world has ever known.

āĻāχ āĻ•ৌāϤূāĻšāϞ āφ⧰ু āϜ্āĻžাāύ⧰ āĻ­োāϕ⧰ āĻĢāϞāϤেāχ āĻ…ā§ąāĻļেāώāϤ āφāϞ āĻĒৃāĻĨিā§ąীāϝ়ে āϜāύা āφāϟাāχāϤāĻ•ৈ āĻŽāĻšাāύ āĻŦিāϜ্āĻžাāύীāϏāĻ•āϞ⧰ āĻāϜāύ āĻšৈ āĻĒā§°িāϞ।

Al, whom the world knows as Thomas Alva Edison, built his most famous laboratory in Menlo Park, New Jersey, USA, in 1876.

āφāϞ, āϝাāĻ• āĻĒৃāĻĨিā§ąীāϝ়ে āĻĨāĻŽাāĻ› āφāϞāĻ­া āĻāĻĄিāϚāύ āĻŦুāϞি āϜাāύে, āϤেāĻ“ঁ ā§§ā§Žā§­ā§Ŧ āϚāύāϤ āφāĻŽেā§°িāĻ•া āϝুāĻ•্āϤ⧰াāώ্āϟ্ā§°ā§° āύিāω āϜাā§°্āϚিā§° āĻŽেāύāϞো āĻĒাā§°্āĻ•āϤ āύিāϜ⧰ āφāϟাāχāϤāĻ•ৈ āĻŦিāĻ–্āϝাāϤ āĻĒā§°ীāĻ•্āώাāĻ—াā§°āϟো āύিā§°্āĻŽাāĻŖ āϕ⧰িāĻ›িāϞ।

Edison was called the 'Wizard of Menlo Park" because he created two of his greatest works there.

āĻāĻĄিāϚāύāĻ• 'āĻŽেāύāϞো āĻĒাā§°্āϕ⧰ āϝাāĻĻুāϕ⧰' āĻŦুāϞি āĻ•োā§ąা āĻšৈāĻ›িāϞ āĻ•াā§°āĻŖ āϤেāĻ“ঁ āϤাāϤ āϤেāĻ“ঁā§° āĻĻুāϟা āφāϟাāχāϤāĻ•ৈ āĻĄাāϙ⧰ āĻ†ā§ąিāώ্āĻ•াā§° āϕ⧰িāĻ›িāϞ।

There, he invented the phonograph, the first machine that could record the sound of someone's voice and play it back.

āϤাāϤ, āϤেāĻ“ঁ āĻĢ'āύ'āĻ—্ā§°াāĻĢ āĻ†ā§ąিāώ্āĻ•াā§° āϕ⧰িāĻ›িāϞ, āϝিāϟো āĻĒ্ā§°āĻĨāĻŽ āϝāύ্āϤ্ā§° āφāĻ›িāϞ āϝিāϝ়ে āĻ•াā§°োāĻŦাā§° āĻŽাāϤ ā§°েāϕ⧰্āĻĄ āϕ⧰িāĻŦ āĻĒাā§°িāĻ›িāϞ āφ⧰ু āχāϝ়াāĻ• āĻŦāϜাāĻŦ āĻĒাā§°িāĻ›িāϞ।

In 1877, Edison recorded the first words.

ā§§ā§Žā§­ā§­ āϚāύāϤ āĻāĻĄিāϚāύে āĻĒ্ā§°āĻĨāĻŽ āĻļāĻŦ্āĻĻāĻŦোā§° ā§°েāϕ⧰্āĻĄ āϕ⧰িāĻ›িāϞ।

He recited the nursery rhyme "Mary Had a Little Lamb," and the phonograph played the words back to him.

āϤেāĻ“ঁ "āĻŽেā§°ী āĻšেāĻĄ āĻ āϞিāϟāϞ āϞেāĻŽ্āĻŦ" āύাāĻŽā§° āĻļিāĻļু āĻĒāĻĻ্āϝāϟো āφāĻŦৃāϤ্āϤি āϕ⧰িāĻ›িāϞ, āφ⧰ু āĻĢ'āύ'āĻ—্ā§°াāĻĢে āĻļāĻŦ্āĻĻāĻŦোā§° āϤেāĻ“ঁāϞৈ āϘূā§°াāχ āĻŦāϜাāχāĻ›িāϞ।

Then he invented the most famous light bulb there, without which now, we cannot imagine our life.

āϤাā§° āĻĒিāĻ›āϤ āϤেāĻ“ঁ āϤাāϤ āφāϟাāχāϤāĻ•ৈ āĻŦিāĻ–্āϝাāϤ āϞাāχāϟ āĻŦাāϞ্āĻŦāϟো āĻ†ā§ąিāώ্āĻ•াā§° āϕ⧰িāĻ›িāϞ, āϝাā§° āĻ…āĻŦিāĻšāύে āĻāϤিāϝ়া, āφāĻŽি āφāĻŽাā§° āϜীā§ąāύ āĻ•āϞ্āĻĒāύা āϕ⧰িāĻŦ āύোā§ąাā§°ো।

But, inventing the light bulb was not an easy task.

āĻ•িāύ্āϤু, āϞাāχāϟ āĻŦাāϞ্āĻŦ āĻ†ā§ąিāώ্āĻ•াā§° āϕ⧰াāϟো āχāĻŽাāύ āϏāĻšāϜ āĻ•াāĻŽ āύাāĻ›িāϞ।

Edison and his co-workers experimented and failed a thousand times.

āĻāĻĄিāϚāύ āφ⧰ু āϤেāĻ“ঁā§° āϏāĻšāϕ⧰্āĻŽীāϏāĻ•āϞে āĻĒā§°ীāĻ•্āώা-āύিā§°ীāĻ•্āώা āϕ⧰িāĻ›িāϞ āφ⧰ু āĻāĻšেāϜাā§°āĻŦাā§° āĻŦিāĻĢāϞ āĻšৈāĻ›িāϞ।

Only after that, they could become successful.

āϤাā§° āĻĒিāĻ›āϤāĻšে, āϤেāĻ“ঁāϞোāĻ• āϏāĻĢāϞ āĻš'āĻŦ āĻĒাā§°িāĻ›িāϞ।

The whole world called him a genius.

āĻ—োāϟেāχ āĻĒৃāĻĨিā§ąীāϝ়ে āϤেāĻ“ঁāĻ• āĻāϜāύ āĻĒ্ā§°āϤিāĻ­াāĻļাāϞী āĻŦ্āϝāĻ•্āϤি āĻŦুāϞি āĻ•ৈāĻ›িāϞ।

But Edison believed that having an idea is not enough.

āĻ•িāύ্āϤু āĻāĻĄিāϚāύে āĻŦিāĻļ্āĻŦাāϏ āϕ⧰িāĻ›িāϞ āϝে āĻ•েā§ąāϞ āĻāϟা āϧাā§°āĻŖা āĻĨāĻ•াāχ āϝāĻĨেāώ্āϟ āύāĻšāϝ়।

It takes hard work to turn a dream into reality.

āĻāϟা āϏāĻĒোāύāĻ• āĻŦাāϏ্āĻ¤ā§ąāϤ āĻĒā§°িāĻŖāϤ āϕ⧰িāĻŦāϞৈ āĻ•āĻ োā§° āĻĒā§°িāĻļ্ā§°āĻŽā§° āĻĒ্ā§°āϝ়োāϜāύ।

He said, "Genius is 1% inspiration and 99% perspiration."

āϤেāĻ“ঁ āĻ•ৈāĻ›িāϞ, "āĻĒ্ā§°āϤিāĻ­া āĻš'āϞ ā§§% āĻ…āύুāĻĒ্ā§°েā§°āĻŖা āφ⧰ু ⧝⧝% āϘাāĻŽ (āĻĒā§°িāĻļ্ā§°āĻŽ)।"

Later, Edison built a laboratory in West Orange, USA.

āĻĒিāĻ›āϞৈ, āĻāĻĄিāϚāύে āφāĻŽেā§°িāĻ•া āϝুāĻ•্āϤ⧰াāώ্āϟ্ā§°ā§° ā§ąেāώ্āϟ āĻ…ā§°েāĻž্āϜāϤ āĻāϟা āĻĒā§°ীāĻ•্āώাāĻ—াā§° āύিā§°্āĻŽাāĻŖ āϕ⧰িāĻ›িāϞ।

It was one of the largest laboratories in the world and as famous as Edison himself.

āĻāχāϟো āĻĒৃāĻĨিā§ąীā§° āĻ…āύ্āϝāϤāĻŽ āĻĄাāϙ⧰ āĻĒā§°ীāĻ•্āώাāĻ—াā§° āφāĻ›িāϞ āφ⧰ু āĻāĻĄিāϚāύ⧰ āĻĻā§°েāχ āĻŦিāĻ–্āϝাāϤ āφāĻ›িāϞ।

At night, the laboratory buildings would glow with electric lights while the Wizard with his co-workers turned his dreams into inventions.

ā§°াāϤি, āĻĒā§°ীāĻ•্āώাāĻ—াā§°ā§° āĻ­ā§ąāύāĻŦোā§° āĻŦৈāĻĻ্āϝুāϤিāĻ• āĻĒোāĻšā§°ā§°ে āϜিāϞিāĻ•ি āωāĻ িāĻ›িāϞ āϝেāϤিāϝ়া āϝাāĻĻুāϕ⧰āϜāύে āύিāϜ⧰ āϏāĻšāϕ⧰্āĻŽীāϏāĻ•āϞ⧰ āϏৈāϤে āύিāϜ⧰ āϏāĻĒোāύāĻŦোā§°āĻ• āĻ†ā§ąিāώ্āĻ•াā§°āϞৈ ā§°ূāĻĒাāύ্āϤ⧰িāϤ āϕ⧰িāĻ›িāϞ।

Thomas Alva Edison has 1093 patents in his name.

āĻĨāĻŽাāĻ› āφāϞāĻ­া āĻāĻĄিāϚāύ⧰ āύাāĻŽāϤ ā§§ā§Ļā§¯ā§Š āϟা āĻĒেāϟেāĻŖ্āϟ āφāĻ›ে।

Apart from the phonograph and the light bulb, Edison invented several other things.

āĻĢ'āύ'āĻ—্ā§°াāĻĢ āφ⧰ু āϞাāχāϟ āĻŦাāϞ্āĻŦā§° āωāĻĒā§°িāĻ“, āĻāĻĄিāϚāύে āφāύ āĻŦāĻšুāϤো āĻŦāϏ্āϤু āĻ†ā§ąিāώ্āĻ•াā§° āϕ⧰িāĻ›িāϞ।

He worked on X-rays, storage batteries, and the first talking doll.

āϤেāĻ“ঁ āĻāĻ•্āϏ-ā§°ে, āώ্āϟ'ā§°েāϜ āĻŦেāϟাā§°ী, āφ⧰ু āĻĒ্ā§°āĻĨāĻŽ āĻ•āĻĨা āĻ•োā§ąা āĻĒুāϤāϞাā§° āĻ“āĻĒā§°āϤ āĻ•াāĻŽ āϕ⧰িāĻ›িāϞ।

At West Orange, he also worked on one of his greatest ideas, "movies."

ā§ąেāώ্āϟ āĻ…ā§°েāĻž্āϜāϤ, āϤেāĻ“ঁ āύিāϜ⧰ āĻ…āύ্āϝāϤāĻŽ āĻĄাāϙ⧰ āϧাā§°āĻŖা, "āϚāϞāϚ্āϚিāϤ্ā§°"-ā§° āĻ“āĻĒā§°āϤো āĻ•াāĻŽ āϕ⧰িāĻ›িāϞ।

With his inventions, Thomas Alva Edison changed the way of living our lives.

āύিāϜ⧰ āĻ†ā§ąিāώ্āĻ•াā§°ā§° āϜ⧰িāϝ়āϤে āĻĨāĻŽাāĻ› āφāϞāĻ­া āĻāĻĄিāϚāύে āφāĻŽাā§° āϜীā§ąāύ āϝাāĻĒāύ⧰ āϧ⧰āĻŖ āϏāϞāύি āϕ⧰ি āĻĻিāĻ›িāϞ।

We are still getting the benefits from his inventions.

āφāĻŽি āĻāϤিāϝ়াāĻ“ āϤেāĻ“ঁā§° āĻ†ā§ąিāώ্āĻ•াā§°ā§° āĻĒā§°া āϞাāĻ­ā§ąাāύ āĻšৈ āφāĻ›োঁ।

This science wizard died on October 18, 1931, at the age of 84.

āĻāχ āĻŦিāϜ্āĻžাāύ⧰ āϝাāĻĻুāϕ⧰āϜāύ⧰ ā§§ā§¯ā§Šā§§ āϚāύ⧰ ā§§ā§Ž āĻ…āĻ•্āϟোāĻŦā§°āϤ ā§Žā§Ē āĻŦāϛ⧰ āĻŦāϝ়āϏāϤ āĻŽৃāϤ্āϝু āĻšāϝ়।

2. Word Meanings (āĻļāĻŦ্āĻĻাāϰ্āĻĨ)

wizard: āϝাāĻĻুāϕ⧰
lanterns: āϞেāĻŽ
disheartened: āύিā§°াāĻļ āĻšোā§ąা āĻŦা āĻšāϤাāĻļ āĻšোā§ąা
curiosity: āĻ•ৌāϤূāĻšāϞ
eventually: āĻ…ā§ąāĻļেāώāϤ
genius: āĻĒ্ā§°āϤিāĻ­াāĻļাāϞী
inspiration: āĻ…āύুāĻĒ্ā§°েā§°āĻŖা
perspiration: āϘাāĻŽ āĻŦা āĻĒā§°িāĻļ্ā§°āĻŽ
patents: āĻĒেāϟেāĻŖ্āϟ āĻŦা āĻāĻ•āϚেāϟিāϝ়া āĻ…āϧিāĻ•াā§°

3. Comprehension Solutions

1. Answer the following questions in complete sentences.

a) When was Al born?
Ans: Al was born on 11 February 1847.

b) What did Al's mother teach him?
Ans: Al's mother taught him reading, writing, and arithmetic.

c) What is Al's full name?
Ans: Al's full name is Thomas Alva Edison.

d) Where did Edison build his most famous laboratory?
Ans: Edison built his most famous laboratory in Menlo Park, New Jersey, USA.

e) Who was called the 'Wizard of Menlo Park'?
Ans: Thomas Alva Edison was called the 'Wizard of Menlo Park'.

f) Who invented the light bulb?
Ans: Thomas Alva Edison invented the light bulb.

g) When did Edison record the first words?
Ans: Edison recorded the first words in 1877.

2. Fill in the blanks with words from the text.

a) Q: Al learned to be ........ at a young age.

Ans: Al learned to be independent at a young age.

b) Q: There he used to conduct ........ experiments.

Ans: There he used to conduct chemical experiments.

c) Q: Edison has 1093 ........ in his name.

Ans: Edison has 1093 patents in his name.

d) Q: Edison experimented and ........ a thousand times.

Ans: Edison experimented and failed a thousand times.

e) Q: He worked on the first ........ doll.

Ans: He worked on the first talking doll.

3. Write whether the following statements are true or false.
  • a) Edison could not do well in his studies. → True
  • b) Edison started selling newspaper at the age of 13. → False
  • c) Al was interested in reading books. → True
  • d) It takes hard work to turn a dream into reality. → True

4. Activities Solutions & Grammar

Grammar Tip: Using Prepositions correctly

Remember: We use 'in' for months and general locations (in July, in the room). We use 'on' for surfaces (on the table). We use 'at' for specific times and points (at night, at the door).

Activity 1: Rewrite the sentences and underline the prepositions
  • a) He is sitting on a sofa.
  • b) Hridoy is coming from the market.
  • c) I am going to Shillong tomorrow.
  • d) The sky is over my head.
  • e) He was born in July.
  • f) Bhaswati is in the classroom.
  • g) The chair is made of wood.
  • h) Curd is made from milk.
  • i) He came in the morning.
  • j) We see stars at night.
Activity 2: Fill in the blanks with appropriate prepositions
  • a) He is in the room.
  • b) I am going to the market.
  • c) The book is on the table.
  • d) The bird is in the tree.
  • e) Flowers bloom in spring.
  • f) He is walking along the road.
  • g) The lady is sitting in the armchair.
  • h) The girl is holding an umbrella over her head.
  • i) The cat is sitting under the chair.
Writing Activity: Write a Mango Milkshake Recipe

Recipe: Mango Milkshake

Ingredients:
• 1 or 2 ripe mangoes chopped into small pieces.
• 1 and 1/2 cup of fresh milk.
• 2 scoops of vanilla ice cream.
• 1 teaspoon sugar.

Steps:
At first pour the milk into the blender jar. Then add all the other ingredients like the chopped mangoes, the ice cream, and the sugar. Now blend them nicely for at least one minute. Our mango milkshake is ready to serve. Pour it into a beautiful serving glass.

5. Build Up Your Vocabulary

Scientific Terms and Tools (āĻŦৈāϜ্āĻžাāύিāĻ• āϏঁāϜুāϞি āφ⧰ু āĻļāĻŦ্āĻĻ)

test tubes: āĻĒā§°ীāĻ•্āώাāύāϞী
magnet: āϚুāĻŽ্āĻŦāĻ•
magnifying glass: āĻŦিāĻŦā§°্āϧāĻ• āĻ•াঁāϚ
blotting paper: āϚোāĻšা āĻ•াāĻ—āϜ
beaker: āĻŦিāĻ•াā§°
thermometer: āϤাāĻĒāĻŽাāύ āϝāύ্āϤ্ā§° / āĻĨাā§°্āĻŽ'āĻŽিāϟাā§°
barometer: āĻŦেā§°'āĻŽিāϟাā§° (āĻŦাāϝ়ুā§° āϚাāĻĒ āϜোāĻ–া āϝāύ্āϤ্ā§°)
microscope: āĻ…āĻŖুāĻŦীāĻ•্āώāĻŖ āϝāύ্āϤ্ā§°
stethoscope: āώ্āϟেāĻĨāϏ্āĻ•'āĻĒ
photosynthesis: āϏাāϞোāĻ• āϏংāĻļ্āϞেāώāĻŖ
vaporization: āĻŦাāώ্āĻĒীāĻ­ā§ąāύ
gravity: āĻŽাāϧ্āϝাāϕ⧰্āώāĻŖ

6. FAQs on the Chapter

Q. Who is known as the "Wizard of Menlo Park"?

Ans: Thomas Alva Edison is famously known as the "Wizard of Menlo Park" because he made some of his greatest inventions (like the phonograph and light bulb) in his laboratory located in Menlo Park, USA.

Q. What was the famous quote given by Thomas Alva Edison regarding success?

Ans: Thomas Alva Edison believed strongly in hard work. His famous quote is: "Genius is 1% inspiration and 99% perspiration."

Q. Why did Edison's mother take him out of school?

Ans: Edison's mother took him out of school after just 12 weeks because his teachers thought he was a slow learner and too stupid to learn anything. Being a teacher herself, she decided to homeschool him.

Final Thoughts

The story of Thomas Alva Edison teaches us that no matter what others say, with curiosity, dedication, and immense hard work, anyone can achieve greatness! We hope these Assam Jatiya Bidyalay Class 4 English Lesson 13 notes have been helpful. Keep learning, keep experimenting, and if you have any questions, feel free to drop a comment below!

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