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CBSE Class 9 Science — Flashcards

CBSE Class 9 Science flashcards, chapter by chapter — 1046 flashcards across 13 chapters. Follows the CBSE syllabus.

How to Use Flashcards

  1. Read the question — answer it in your head before flipping.
  2. Check the answer — mark the cards you got wrong.
  3. Repeat the hard ones — review wrong cards more often, easy ones less.
  4. Little and often — short daily sessions beat long cramming sessions.

Chapter-Wise Flashcards — 13 Chapters

Q: वैज्ञानिक मॉडल क्या है?

A: वैज्ञानिक मॉडल (scientific model) किसी वास्तविक तंत्र को दर्शाने का एक सरल तरीका है। यह केवल सबसे महत्वपूर्ण विवरणों को रखता है और कुछ अन्य विवरणों को जानबूझकर अनदेखा कर देता है ताकि समझना आसान हो जाए

Q: What is a scientific model?

A: A scientific model is a simplified way of representing a real system. It keeps only the most important details and deliberately ignores some others to make understanding easier.

Q: Why are models used in science?

A: The natural world is very complex, so models help study it in a simpler form. For example, a moving car may be represented as a single point, and the Earth may be treated as a smooth sphere layered in

All 68 Exploration : Entering the World of Secondary Science flashcards

Q: कोशिका क्या है?

A: कोशिका सभी जीवों में संरचना और कार्य की मूल इकाई है। कुछ जीवों में केवल एक कोशिका होती है, जबकि अन्य में कई कोशिकाएँ एक साथ काम करती हैं।

Q: What is a cell?

A: A cell is the basic unit of structure and function in all living organisms. Some organisms have only one cell, while others have many cells working together.

Q: Why is the cell called the basic unit of life?

A: All living organisms are made of cells, and all life processes happen inside cells. Tissues, organs, and organ systems are all built from cells.

All 90 Cell :The Building Block of Life flashcards

Q: What is a tissue?

A: A tissue is a group of cells similar in structure that work together to perform a specific function.

Q: ऊतक क्या होता है?

A: ऊतक कोशिकाओं का एक समूह है जो संरचना में समान होते हैं और एक विशिष्ट कार्य करने के लिए एक साथ काम करते हैं।

Q: बहुकोशिकीय जीवों में ऊतक क्यों महत्वपूर्ण हैं?

A: ऊतक श्रम का विभाजन करते हैं। विभिन्न समूहों की कोशिकाएं अलग-अलग काम करती हैं, इसलिए शरीर अधिक कुशलता से काम करता है और जटिल जीवन प्रक्रियाओं को कर सकता है।

All 96 Tissues in Action flashcards

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Frequently Asked Questions

Where can I find CBSE Class 9 Science Flashcards?

This page has flashcards for 13 chapters of CBSE Class 9 Science for the 2026-27 session. Each chapter links to its own page with the full set.

Go through the syllabus first, then work chapter by chapter: learn the ideas, practise questions, and revise with notes and flashcards. Leave time at the end to revise every chapter once more under timed conditions.

Read the question side, answer it in your head, then check. Put the cards you got wrong back into the pile and review them again the next day. Short daily sessions work better than long ones.

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13 chapters

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