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Define Winnowing with an example
Separating by wind or air...Eg. Random
Name 5 groups into which materials can be sorted
Soluble, Insoluble, Hard, Rough, Opaque, Translucent, Transparent, etc.
Oil dissolves in water, true or false, if true explain why? If False, explain why?
True, because oil and water don't have the same density, (they both have a different mass).
Define Density
It is the amount of compactness between 2 substances
Give 8 examples of daily used materials
Wood, Plastic, Metal, Glass, Cotton, Leather, Wool, Rubber, etc.
Give 4 examples of soluble substances
Salt, Sugar, Vinegar, Detergent, etc.
Give 2 examples of insoluble substances
Oil, sand, etc.
What is the process of separating insoluble substances called?
Sedimentation
Define Decantation
Separation process in which two immiscible liquids are separated.
Define Sieving with an example.
Sieving allows the fine flour particles to pass through the holes of the sieve while the bigger particles or impurities remain on the sieve.
Which of these can be separated using handpicking
For separating different kinds of vegetables from the mixture of vegetables in the basket.
