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What are physical changes?

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Physical changes are changes that affect one or more physical properties of a substance without altering its chemical composition. Examples include cutting, crushing, melting, and boiling.

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What are chemical properties?

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Chemical properties are characteristics of a substance that become evident during a chemical reaction. They describe how a substance interacts with other substances, such as rusting or tarnishing.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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What is solubility?

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Solubility is the ability of a substance to dissolve in another substance, typically in a liquid. For example, sugar dissolving in water.

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What is a physical property?

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A physical property is a characteristic of a substance that can be observed or measured without changing its chemical identity. Examples include color, density, and melting point.

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

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What is a chemical change?

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A chemical change is a process that involves the transformation of one substance into another, resulting in a change in chemical composition. Examples include burning, rusting, and digestion.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is the Law of Conservation of Mass?

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The Law of Conservation of Mass states that mass is neither created nor destroyed in a chemical reaction. The total mass of the reactants equals the total mass of the products.

Tags

NGSS.MS-PS1-5

Front

What is the difference between physical and chemical changes?

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Physical changes do not alter the chemical composition of a substance, while chemical changes result in the formation of new substances with different properties.

Tags

NGSS.MS-PS1-5

Front

What is malleability?

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Malleability is a physical property that describes a material's ability to be deformed or shaped under compressive stress, such as hammering or rolling.

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What is ductility?

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Ductility is a physical property that refers to a material's ability to be stretched into a wire without breaking.

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What is a chemical reaction?

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A chemical reaction is a process in which substances (reactants) undergo a transformation to form new substances (products) with different properties.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5