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Exploring the Investigative World of Science

CBSE · Class 8 · Science

Flashcards for Exploring the Investigative World of Science — CBSE Class 8 Science. Quick Q&A cards covering key concepts, definitions, and formulas.

44 questions64 flashcards5 concepts

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64 Flashcards
Card 1Puri investigation

Why is one side of a puri thinner than the other?

Answer

A puri can puff unevenly because the dough, oil temperature, and way it is dropped into the oil affect how steam forms and spreads inside it. This is a scientific question that needs careful observati

Card 2पुरी अन्वेषण

पुरी का एक किनारा दूसरे किनारे से पतला क्यों होता है?

Answer

एक पूरी असमान रूप से फूल सकती है क्योंकि आटा, तेल का तापमान और जिस तरह से इसे तेल में डाला जाता है, वह प्रभावित करता है कि भाप कैसे बनती है और उसके अंदर कैसे फैलती है। यह एक वैज्ञानिक प्रश्न है जिसके

Card 3Kitchen science

Why does a phulka swell when put directly on a flame?

Answer

Heat makes the water inside the dough turn into steam. The steam pushes the dough outward, so the phulka swells.

Card 4रसोई विज्ञान

आग पर सीधे रखने पर फुलका क्यों फूल जाता है?

Answer

गर्मी से आटे के अंदर का पानी भाप में बदल जाता है। भाप आटे को बाहर की ओर धकेलती है, जिससे फुलका फूल जाता है।

Card 5Scientific method

What should be changed one at a time in a scientific experiment?

Answer

Only one thing should be changed at a time while all other conditions stay the same. This makes it easier to find out which change caused the result.

Card 6वैज्ञानिक विधि

वैज्ञानिक प्रयोग में एक बार में क्या बदलना चाहिए?

Answer

एक बार में केवल एक ही चीज़ को बदलना चाहिए जबकि अन्य सभी स्थितियाँ समान रहें। इससे यह पता लगाना आसान हो जाता है कि किस परिवर्तन के कारण परिणाम आया।

Card 7Variables in experiment

What can be observed in the puri experiment?

Answer

The puri puffing up can be observed as yes or no. The time taken to puff up can also be measured in seconds.

Card 8प्रयोग में चर

पुरी प्रयोग में क्या देखा जा सकता है?

Answer

पुरी फुलाने को हाँ या ना के रूप में देखा जा सकता है। फुलाने में लगने वाले समय को सेकंड में भी मापा जा सकता है।

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Frequently Asked Questions

What are the important topics in Exploring the Investigative World of Science for CBSE Class 8 Science?
Exploring the Investigative World of Science 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 Exploring the Investigative World of Science — CBSE Class 8 Science?
Understand the core concepts first, then work through the 44 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 Exploring the Investigative World of Science?
There are 64 flashcards for Exploring the Investigative World of Science covering key definitions, formulas, and concepts. Use them daily for 10–15 minutes for best results.

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