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The Invisible Living World: Beyond Our Naked Eye

CBSE · Class 8 · Science

Flashcards for The Invisible Living World: Beyond Our Naked Eye — CBSE Class 8 Science. Quick Q&A cards covering key concepts, definitions, and formulas.

45 questions70 flashcards5 concepts

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Card 1Cell basics

What is a cell?

Answer

A cell is the basic unit of life. All living beings are made of cells, and cells form the body of plants, animals, and microorganisms.

Card 2कोशिका मूल बातें

कोशिका क्या है?

Answer

कोशिका जीवन की मूल इकाई है। सभी जीव कोशिका से बने हैं और कोशिका से ही पेड़, जानवर और सूक्ष्मजीवों का शरीर बनता है।

Card 3History of cell discovery

Why did Robert Hooke name small spaces in cork cells?

Answer

He observed a thin slice of cork under a microscope and saw many small empty spaces like a honeycomb. He called each space a cell.

Card 4कोशिका की खोज का इतिहास

रॉबर्ट हुक ने कॉर्क कोशिकाओं में छोटी जगहों का नाम क्यों रखा?

Answer

उसने सूक्ष्मदर्शी के नीचे कॉर्क के एक पतले टुकड़े को देखा और मधुकोश की तरह कई छोटे खाली स्थान देखे। उसने प्रत्येक स्थान को एक कोशिका कहा।

Card 5Microscope and discovery

What did Robert Hooke’s microscope do?

Answer

It magnified objects 200 to 300 times more than the unaided eye, helping him see tiny structures clearly.

Card 6सूक्ष्मदर्शी और खोज

रॉबर्ट हुक के सूक्ष्मदर्शी ने क्या किया?

Answer

इसने वस्तुओं को नग्न आंखों की तुलना में 200 से 300 गुना अधिक बड़ा कर दिया, जिससे उन्हें छोटी संरचनाओं को स्पष्ट रूप से देखने में मदद मिली।

Card 7Pioneers of microbiology

Who was Antonie van Leeuwenhoek known as?

Answer

He is known as the Father of Microbiology because he was the first person to clearly see and describe tiny living things like bacteria and blood cells.

Card 8सूक्ष्म जीवविज्ञान के अग्रदूत

एंटनी वैन लीउवेनहोएक को किस नाम से जाना जाता था?

Answer

उन्हें सूक्ष्म जीव विज्ञान के जनक के रूप में जाना जाता है क्योंकि वे पहले व्यक्ति थे जिन्होंने बैक्टीरिया और रक्त कोशिकाओं जैसी छोटी जीवित चीजों को स्पष्ट रूप से देखा और उनका वर्णन किया।

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Frequently Asked Questions

What are the important topics in The Invisible Living World: Beyond Our Naked Eye for CBSE Class 8 Science?
The Invisible Living World: Beyond Our Naked Eye covers several key topics that are frequently asked in CBSE Class 8 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in The Invisible Living World: Beyond Our Naked Eye — CBSE Class 8 Science?
Understand the core concepts first, then work through the 45 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many flashcards are available for The Invisible Living World: Beyond Our Naked Eye?
There are 70 flashcards for The Invisible Living World: Beyond Our Naked Eye covering key definitions, formulas, and concepts. Use them daily for 10–15 minutes for best results.

Sources & Official References

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