Using Properties of materials to separate mixtures

1. What type of mixture is formed when iron filings and sulfur are mixed together?

• A. Compound

• B. Element

• C. Mixture

• D. Solution

2. Why can a magnet separate iron from sulfur?

• A. Sulfur is heavier

• B. Iron is magnetic, sulfur is not

• C. Iron dissolves in sulfur

• D. Sulfur evaporates

3. What property is used to separate a mixture of iron filings and sulfur?

• Magnetism

• Evaporation

• Electrical conductor

• Percipitation

4. What happens to water in a warm room when it is mixed with copper sulfate?

• A. It freezes

• B. It changes into copper

• C. It evaporates

• D. It reacts with the salt

5. What remains in the evaporating dish after the water evaporates from copper sulfate solution?

• Copper

• Copper sulfate

• Sulfur

• Nothing

6. What is the method used to separate copper sulfate and water?

• A. Filtration

• B. Distillation

• C. Evaporation

• D. Chromatography

7. What apparatus is used to separate food dye and water?

• A Measuring cylinder

• B Condenser

• C Conical flask

• D thermometer

8. What is the key difference between water and food dye that allows them to be separated by distillation?

• A They have different melting point

• B Both are liquid

• C I don't know

• D They have different boiling points.

9. What is steam?

• A. Solid water

• B. Frozen water

• C. Water in gas form

• D. Boiled food dye

Which of the following mixtures can be separated using evaporation?

• A. Sand and iron filings

• B. Salt and water

• C. Oil and water

• D. Iron and sulfur