How Things are Made
CBSE · Class 4 · EVS
Flashcards for How Things are Made — CBSE Class 4 EVS. Quick Q&A cards covering key concepts, definitions, and formulas.
What is the first step in making recycled paper?
Answer
Tear old newspapers into small pieces and soak them in water. Add fenugreek seeds (methi) to act as a binding material and leave overnight.
Why are fenugreek seeds (methi) added when making recycled paper?
Answer
Fenugreek seeds are used as a binding material to help hold the paper fibers together and make the paper stronger.
Name three natural ingredients that can be used to color paper and their colors.
Answer
1. Turmeric - Yellow color (dull) 2. Spinach - Green color 3. Beetroot - Red/Pink color 4. Henna - Orange/Brown color
What materials did people use for writing before paper was invented?
Answer
People used cloth, leaves, wooden boards, and palm leaves called 'talapatra' in India for writing before paper was invented.
Why is tissue paper used for cleaning?
Answer
Tissue paper is used for cleaning because it is very thin, soft, and absorbs water easily.
Why is cardboard used for making boxes?
Answer
Cardboard is used for making boxes because it is thick and hard, which makes it strong enough to pack and protect various objects.
What is the Braille system and how does it help visually challenged people?
Answer
The Braille system helps visually challenged people read and write by feeling different patterns of tiny bumps on special Braille paper. These patterns represent different numbers, alphabets, and punc
What are the 5 Rs of waste management?
Answer
The 5 Rs are: 1. Refuse - Say no to things that create waste 2. Reduce - Use things carefully to create less waste 3. Reuse - Use something many times 4. Repurpose - Use something in a new way 5. Recy
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What are the important topics in How Things are Made for CBSE Class 4 EVS?
How Things are Made covers several key topics that are frequently asked in CBSE Class 4 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
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Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.
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There are 20 flashcards for How Things are Made covering key definitions, formulas, and concepts. Use them daily for 10–15 minutes for best results.
Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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