Educational worksheet on separating mixtures, featuring images of various scientific techniques like filtration, evaporation, and chromatography.

Task: Matching Pictures with Separation Techniques

The task involves matching each picture with the correct method of separating mixtures. Below is the explanation and solution for each image:

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#### Image 1 (Top Left):
- Description: A magnet is being used to attract a substance from a mixture.
- Technique: Magnetic Attraction
- Explanation: Magnetic attraction is used to separate magnetic materials (like iron) from a mixture of non-magnetic substances.

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#### Image 2 (Top Middle):
- Description: A liquid is being heated in a container, and steam is visible.
- Technique: Evaporation
- Explanation: Evaporation is used to separate a solid that has dissolved in a liquid solution. The liquid is heated until it turns into a gas, leaving the solid behind.

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#### Image 3 (Top Right):
- Description: A person is using a sieve to separate particles.
- Technique: Sifting
- Explanation: Sifting is used to separate smaller solid particles from larger solid particles. The mixture is passed through a sieve, allowing smaller particles to pass through while retaining larger particles.

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#### Image 4 (Bottom Left):
- Description: Chromatography paper with different colored bands is shown.
- Technique: Chromatography
- Explanation: Chromatography is used to separate solutes in a solution based on their solubility and movement through a medium (e.g., paper or gel).

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#### Image 5 (Bottom Middle):
- Description: A filter paper is being used to separate a solid from a liquid.
- Technique: Filtration
- Explanation: Filtration is used to separate solid particles from a liquid by passing the mixture through a filter paper, which traps the solid particles and allows the liquid to pass through.

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#### Image 6 (Bottom Right):
- Description: Different liquids are layered in graduated cylinders.
- Technique: Floatation
- Explanation: Floatation is used to separate solids that float from the remaining liquid in a mixture. The solids are stirred and then skimmed off the surface when they float to the top.

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Matched Results:

1. Top Left: Magnetic Attraction
2. Top Middle: Evaporation
3. Top Right: Sifting
4. Bottom Left: Chromatography
5. Bottom Middle: Filtration
6. Bottom Right: Floatation

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Completing Definitions

#### Magnetic Attraction:
- Definition: Is used to separate magnetic material from a mixture of other substances. When a magnet is moved through the mixture, it pulls out the magnetic material from the mixture.

#### Evaporation:
- Definition: Is used to separate a solid that has dissolved in a liquid solution. The solution is heated or left uncovered until all the liquid turns to a gas (evaporates), leaving the solid salt in the container.

#### Floatation:
- Definition: It is used to separate solids that float from the remaining liquid in a mixture. The solids are stirred and when they float to the top, they are skimmed off the surface of the liquid and put into a different container.

#### Chromatography:
- Definition: It is used to separate and identify the solutes in a solution. The substances in the solution that dissolve most easily travel the furthest; and substances that do not dissolve easily do not travel very far.

#### Filtration:
- Definition: It is used to separate solid particles from a liquid. For example, pouring the mixture through a filter paper in a funnel will trap the solid particles and only allow the particles of the liquid to pass through.

#### Sifting:
- Definition: It is used to separate smaller solid particles from larger solid particles. When the mixture is shaken, the smaller particles go through the screen leaving the larger particles in the container.

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Final Answer:

\[
\boxed{
\begin{array}{c|c}
\text{Image} & \text{Technique} \\
\hline
\text{Top Left} & \text{Magnetic Attraction} \\
\text{Top Middle} & \text{Evaporation} \\
\text{Top Right} & \text{Sifting} \\
\text{Bottom Left} & \text{Chromatography} \\
\text{Bottom Middle} & \text{Filtration} \\
\text{Bottom Right} & \text{Floatation} \\
\end{array}
}
\]