Answer:

Definitions of the following:

1. Mixtures - A mixture is made when two or more substances are combined, but they are not combined chemically.

2. Handpicking - Handpicking is one of the methods of separation, It is a very old separation technique.

3. Sieving - Sieving is a simple technique for separating particles of different sizes. A sieve such as used for sifting flour has very small holes.

4. Sifting - Sifting is to separate out by or as if by passing through a sieve.

5. Magnetism -  Magnetism is one aspect of the combined electromagnetic force. It refers to physical phenomena arising from the force caused by magnets.

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