Science Quiz

What is a pure substance?

• Made of one type of particle only

• Contains two or more different particles

• A combination of substances physically combined

• A substance that dissolves in a solvent

Which of the following is an example of an impure substance?

• Water

• Gold

• Saltwater

• Sugar

What is a solution?

• A non-uniform mixture

• A homogeneous mixture where one substance dissolves in another

• A substance that cannot dissolve in a solvent

• A combination of two or more substances physically combined

What is the role of a solvent in a solution?

• It is the substance that dissolves

• It is the substance that does the dissolving

• It is a substance that cannot dissolve

• It is a combination of substances

Which of the following is an example of a heterogeneous mixture?

• Saltwater

• Sugar dissolved in water

• Oil and water

• Gold

Which method of separation involves using a filter to separate insoluble solids from liquids?

• Decantation

• Filtration

• Distillation

• Chromatography

What is the process called that separates a solute from a solution by evaporating the solvent?

• Crystallization

• Filtration

• Magnetism

• Decantation

Which method is used to separate components of a mixture based on their movement through a medium?

• Distillation

• Chromatography

• Evaporation

• Magnetism

What separation technique is used to separate liquids based on their boiling points?

• Filtration

• Decantation

• Distillation

• Crystallization

Which method involves separating magnetic materials from non-magnetic substances?

• Evaporation

• Magnetism

• Chromatography

• Filtration