Separation techniques are methods used to separate mixtures into their individual components. This is important because many substances in our daily lives are mixtures, not pure substances. Different techniques rely on differences in the physical properties of the components, such as size, density, boiling point, or solubility. Understanding these techniques allows us to purify substances, analyze mixtures, and even recycle materials!
Match the following terms with their correct definitions:
| Term | Definition |
|---|---|
| 1. Filtration | A. Separating liquids with different boiling points. |
| 2. Evaporation | B. Separating insoluble solids from a liquid using a filter. |
| 3. Distillation | C. The process of a liquid changing to a gas. |
| 4. Magnetism | D. Separating a magnetic substance from a non-magnetic substance. |
| 5. Chromatography | E. Separating substances based on their different solubilities carried by a solvent. |
Answer Key:
Complete the paragraph below using the following words: Solute, Solvent, Solution, Decantation, Sieving
When a ______ dissolves in a ______, it forms a ______. ______ is a separation technique used to separate a liquid from a solid after settling. ______ is a separation technique used to separate particles of different sizes.
Answer Key:
Imagine you have a mixture of sand, salt, and iron filings. Describe the steps you would take to separate these three components. Explain which separation technique you would use for each step and why.
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