2.4 Mastery Check v1 Mixtures

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

• Sand and water

• Salt dissolved in water

• Oil and water

• Salad

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DOK Level 1: Recall

Identify the property that best describes a homogeneous mixture.

• Components are easily distinguishable

• Composition is uniform throughout

• Components can be separated by filtration

• Different phases are visible

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DOK Level 2: Skill/Concept

Which of the following is a characteristic of a heterogeneous mixture?

• It has a uniform composition

• It consists of a single phase

• Its components are not uniformly distributed

• It cannot be separated by physical means

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DOK Level 1: Recall

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

• Air

• Vinegar

• Salad dressing

• Sugar solution

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DOK Level 1: Recall

Which property would you use to distinguish between a homogeneous and a heterogeneous mixture?

• Boiling point

• Uniformity of composition

• Color

• Density

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DOK Level 2: Skill/Concept

Why is air considered a homogeneous mixture?

• It contains only one type of gas

• Its components are not chemically bonded

• It has a uniform composition throughout

• It can be separated by physical means

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DOK Level 2: Skill/Concept

Which of the following statements is true about homogeneous mixtures?

• They can be separated by simple physical means

• They have visibly different parts

• They are always in the liquid state

• They have a consistent composition throughout

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DOK Level 1: Recall

What is a mixture?

• A substance made of only one type of atom

• A combination of two or more substances that are not chemically combined

• A substance that cannot be separated into simpler substances

• A substance made of two or more elements chemically combined

Michael mixed salt in water and it dissolved evenly. Is this an example of a solution?

• Yes

• No

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NGSS.MS-PS1-2

Rohan and Anika are mixing oil and water in a beaker. What type of mixture is this?

• Heterogeneous

• Homogeneous