Question

identify the method by which the given mixtures will be separated. choose the letter of the correct answer inside the box.
1. water in the cloth
2. needle and flour
3. salt solution
4. muddy water
5. pebbles and water
6. oil and water
7. boiled pasta
8. rice grains and rice chaffs
9. pins and wooden clips
10. water turning into steam

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| decantation sieving filtration evaporation |
| use of magnet |
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Answer 1

Answer:

1- Filtration

2- Magnet

3- Evaporation

4- Filtration, decantation

5- Fitration, decantation

6- Can be done by decantation

7- Sieving, decantation

8- Sieving, filtration

9- Magnet

10. Evaporation

Answer 2

Separation techniques are those techniques that can be used to separate two different states of matter such as liquids and solids.

Explanation:

• Decantation is a process for the separation of mixtures of immiscible liquids or of a liquid and a solid mixture such as a suspension. The mixtures that can be separated using decantation are: (4) Muddy Water, (5) Pebbles and water, (6) Oil and Water, (7) Boiled Pasta.

• Filtration is the removal of solid particles from a liquid or gaseous fluid using a filter medium that allows the fluid to go through while retaining the solid particles. The mixtures separated using this method are: (4) Muddy Water and (5) Pebbles and Water.

• Sieving is the process of using a sieve to separate fine particles from larger particles. The mixtures separated using this method are: (5) Pebbles and Water, (7) Boiled Pasta, (8) Rice grains and Rice chaffs.

• Evaporation is a process where liquids change to a gas or vapor. This is applicable for separation of: (1) Water in the Cloth, (3) Salt Solution and (10) Water turning into Steam.

• Magnets are simply used to separate those material which are attracted by magnets from those which are not. Like : (2) Needle and Flour and (9) Pins and wooden clips.