Match the mixture to the correct separation method in this educational worksheet.

To solve the problem of matching mixtures to the appropriate separation methods, we need to understand the properties of each mixture and how the given methods work. Let's analyze each mixture and its corresponding separation method step by step:

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1. Mixed vegetables

- Mixture: A collection of different types of vegetables (e.g., carrots, peas, beans).
- Properties: The vegetables are solid and can be distinguished visually.
- Separation Method: Hand picking.
- Explanation: Since the vegetables are solid and visibly distinct, they can be separated manually by hand.

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2. Sand and iron filings

- Mixture: A combination of sand (non-magnetic) and iron filings (magnetic).
- Properties: Sand is non-magnetic, while iron filings are magnetic.
- Separation Method: Magnetism.
- Explanation: A magnet can attract the iron filings, leaving the sand behind. This method takes advantage of the magnetic property of iron.

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3. Salt solution

- Mixture: A solution of salt dissolved in water.
- Properties: Salt is soluble in water, forming a homogeneous mixture.
- Separation Method: Evaporation.
- Explanation: When the water in the solution is heated and evaporated, the salt remains as a solid residue. This method separates the solute (salt) from the solvent (water).

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4. Ink

- Mixture: A solution containing various dyes or pigments dissolved in a solvent (e.g., water or alcohol).
- Properties: The ink contains different components that may have varying solubilities or molecular sizes.
- Separation Method: Chromatography.
- Explanation: Chromatography separates the components of a mixture based on their differing affinities for a stationary phase and a mobile phase. This method is effective for separating complex mixtures like ink into individual dyes or pigments.

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5. Sand and water

- Mixture: A suspension of sand particles in water.
- Properties: Sand is insoluble in water and settles at the bottom when left undisturbed.
- Separation Method: Filtration.
- Explanation: Filtration uses a filter paper or mesh to separate solid particles (sand) from a liquid (water). The water passes through the filter, leaving the sand behind.

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Final Matching

Based on the analysis above, the correct matches are:

1. Mixed vegetables → Hand picking
2. Sand and iron filings → Magnetism
3. Salt solution → Evaporation
4. Ink → Chromatography
5. Sand and water → Filtration

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Answer

\[
\boxed{
\begin{array}{ll}
\text{Mixed vegetables} & \text{Hand picking} \\
\text{Sand and iron filings} & \text{Magnetism} \\
\text{Salt solution} & \text{Evaporation} \\
\text{Ink} & \text{Chromatography} \\
\text{Sand and water} & \text{Filtration} \\
\end{array}
}
\]