During a science experiment, students attempted to separate a mixture of flour and small stones. What technique should they use?

Filtering

Sifting

Sieving

Winnowing

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Q1.

What is the primary method used to remove small stones from grains?

Q2.

Which characteristics of particles make handpicking an effective method?

Q3.

When is handpicking considered the best method for separation?

Q4.

Malli picks black peppers from his pulao at lunch. This exemplifies which method of separation?