Unit 1 Matter Assessment

Which of the following is a characteristic of solids?

• They have a definite shape and volume.

• They take the shape of their container.

• They can be easily compressed.

• They have no definite volume.

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DOK Level 2: Skill/Concept

What happens to the particles in a liquid when it is heated?

• They move closer together.

• They move faster and spread apart.

• They stop moving.

• They form a solid.

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DOK Level 2: Skill/Concept

Which of the following is an example of a mixture?

• Saltwater

• Pure gold

• Distilled water

• Carbon dioxide

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DOK Level 2: Skill/Concept

What is the main difference between a mixture and a solution?

• A mixture is always a liquid, while a solution is always a solid.

• A mixture can be separated by physical means, while a solution cannot.

• A solution can be separated by physical means, while a mixture cannot.

• A mixture is a type of solution.

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DOK Level 2: Skill/Concept

Which state of matter has particles that are far apart and move freely?

• Solid

• Liquid

• Gas

• Plasma

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DOK Level 2: Skill/Concept

What does the law of conservation of mass state?

• Mass can be created and destroyed.

• Mass is always lost in a chemical reaction.

• Mass is neither created nor destroyed in a chemical reaction.

• Mass is always gained in a chemical reaction.

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DOK Level 2: Skill/Concept

Which of the following is an example of a solution?

• Sand and water

• Oil and water

• Sugar dissolved in water

• Iron filings and sand

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DOK Level 2: Skill/Concept

How can you separate a mixture of sand and iron filings?

• By adding water

• By using a magnet

• By heating the mixture

• By freezing the mixture

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DOK Level 2: Skill/Concept

What happens to the mass of substances in a closed system during a chemical reaction?

• The mass increases.

• The mass decreases.

• The mass remains the same.

• The mass is destroyed.

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DOK Level 2: Skill/Concept

Which of the following best describes a gas?

• It has a definite shape and volume.

• It has a definite volume but no definite shape.

• It has no definite shape or volume.

• It has a definite shape but no definite volume.

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DOK Level 2: Skill/Concept