Grade 8 Science: Separation Techniques

Grade 8 Science: Separation Techniques

Read each question carefully and answer to the best of your ability. Show all your work where applicable.

1. Which separation technique is best for separating sand from water?

2. What property is primarily used to separate components during distillation?

3. A mixture of iron filings and sulfur can be separated using a  .

4.   is a technique used to separate components of a liquid mixture based on their different affinities for a stationary and mobile phase.

5. When salt dissolves in water, it forms a   mixture.

6. Decantation is an effective method to separate two immiscible liquids.

7. Evaporation can be used to recover both the solute and the solvent from a solution.

8. Describe the process of filtration and provide an example of when it would be used.

9. Explain the difference between a homogeneous mixture and a heterogeneous mixture, and give an example of each.

Match each separation technique with its primary principle.