GA. S8P1. C :Exploring Properties of Matter

Which of the following is a chemical property of matter?

• Density

• Melting point

• Reactivity

• Boiling point

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DOK Level 1: Recall

Which of the following best describes the boiling point of a substance?

• The temperature at which a solid turns into a liquid

• The temperature at which a liquid turns into a gas

• The temperature at which a gas turns into a liquid

• The temperature at which a liquid turns into a solid

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DOK Level 1: Recall

Which of these are physical properties of matter?

• mass

• conductivity

• volume

• boiling/melting point

• all of these

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DOK Level 2: Skill/Concept

A student observes that a metal reacts vigorously with acid, producing gas bubbles. What type of property is the student observing?

• Physical property

• Chemical property

• Density

• Melting point

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DOK Level 1: Recall

Design a plan to compare the melting points of two unknown substances. What steps would you include in your investigation?

• Measure the mass of each substance

• Heat each substance and record the temperature at which it changes from solid to liquid

• Dissolve each substance in water and observe the reaction

• Mix the substances and observe any changes

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DOK Level 3: Strategic Thinking

Which of the following is an example of a physical change?

• Rusting of iron

• Burning of wood

• Melting of ice

• Baking a cake

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DOK Level 1: Recall

How does the density of a substance affect its physical properties?

• It determines the substance's reactivity

• It affects the substance's color

• It influences the substance's ability to float or sink in a liquid

• It changes the substance's boiling point

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DOK Level 2: Skill/Concept

A liquid is heated and begins to boil at 100°C. What can be inferred about the liquid?

• It is likely water

• It is a metal

• It is a gas

• It is a solid

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DOK Level 2: Skill/Concept

What is solubility?

• Whether matter sinks or floats in water

• Whether matter dissolves in water

• Whether matter is magnetic

• Whether matter conducts heat

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DOK Level 3: Strategic Thinking

Abigail is experimenting in the lab. She observes that when she heats a piece of metal, it expands, but mixing vinegar with baking soda produces bubbles. What is the difference between chemical and physical properties in this scenario?

• A chemical property describes the ability of a substance to undergo a specific chemical change. A physical property is a characteristic of a substance that can be observed or measured without changing the chemical composition.

• A chemical property requires a test and may change the identity of the substance whereas a physical property can be when a new substance is made.

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NGSS.MS-PS1-2

NGSS.MS-PS1-5