Magnets are classified into three main types: permanent magnets, temporary magnets, and electromagnets. Permanent magnets retain their magnetism, temporary magnets lose it quickly, and electromagnets are magnetic only when an electric current flows.
Category: Class 6 Science
NCERT Solutions and Important Questions for class 6 Science for CBSE exams 2020-2021.
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Common salt is obtained from seawater, which is a mixture of salts and other substances dissolved in water. Chapter 9 Methods of Separation in Everyday Life Class VI NCERT Book Curiosity Science
Sieving is used to separate components of a solid-solid mixture that have different sizes, allowing the smaller particles to pass through while retaining the larger ones. Class 6 Science NCERT Chapter 9 Chapter 9 Methods of Separation in Everyday Life
No, sieving will not work effectively if the holes of the sieve are larger than the substances being sieved, as both fine and larger particles could pass through. NCERT Book Curiosity Science Class 6 Session 2024-2025.
The bigger particles, such as bran and small stones, remain on the sieve, while the fine flour particles pass through the holes. Chapter 9 Methods of Separation in Everyday Life Class VI NCERT Book Curiosity Science