Grade 6 Science Quiz: Mixtures

What are the two main types of mixtures?

• Solid and liquid mixtures

• Organic and inorganic mixtures

• Homogeneous and heterogeneous mixtures

• Metallic and non-metallic mixtures

Give an example of a homogeneous mixture.

• Saltwater

• Sand and water

• Oil and water

• Iron and sulfur

How can you separate a mixture of sand and water?

• Boiling

• Evaporation

• Magnetism

• Filtration

What is a solution?

• A mixture of two or more substances that are not evenly distributed

• A substance that cannot be dissolved in a liquid

• A solid substance that is dissolved in a liquid

• A homogeneous mixture of two or more substances

Explain the difference between a homogeneous and a heterogeneous mixture.

• Homogeneous mixtures have a non-uniform composition and appearance, while heterogeneous mixtures have a uniform composition and appearance.

• Homogeneous mixtures have non-uniform composition and appearance, while heterogeneous mixtures have visible particles.

• Homogeneous mixtures have uniform composition and appearance, while heterogeneous mixtures have non-uniform composition and appearance.

• Homogeneous mixtures have visible particles, while heterogeneous mixtures have uniform composition and appearance.

How can you separate a mixture of oil and water?

• Boiling the mixture

• Adding more water to the mixture

• Decantation or using a separating funnel

• Freezing the mixture

What are the components of a solution?

• Acid and base

• Salt and water

• Solute and solvent

• Solid and liquid

Name two examples of heterogeneous mixtures.

• Chocolate and vanilla ice cream

• Milk and cereal

• Orange juice

• Trail mix, salad with dressing

What is the process of filtration used for in separating mixtures?

• Creating a new substance from the mixture

• Separating solid particles from a liquid or gas mixture

• Heating the mixture to change its state

• Mixing solid particles with a liquid or gas mixture

What is a solvent in a solution?

• The substance that dissolves the solute to form a homogeneous mixture

• The substance that forms the solute in a solution

• The substance that separates from the solute in a solution

• The substance that has no effect on the solute in a solution