7.1 Chemical Reactions and Matter

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What is dissolving?

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Dissolving is the process where a substance breaks down into particles inside a liquid.

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What is evidence in a scientific context?

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Evidence is data from experiments or observations that supports a claim.

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How is solubility defined?

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Solubility is how well a substance can dissolve in a liquid.

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What happens to particles during a chemical change?

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Particles may break apart and rejoin in different ways, forming a substance with a new identity.

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

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What is reasoning in science?

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Reasoning is the explanation that connects evidence to a claim.

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NGSS.MS-LS1-4

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NGSS.MS-PS3-5

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What is a chemical reaction?

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A chemical reaction is a process where substances (reactants) transform into new substances (products).

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

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What is a reactant?

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A reactant is a substance that undergoes a chemical change in a reaction.

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NGSS.MS-PS1-5

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What is a product in a chemical reaction?

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A product is a new substance formed as a result of a chemical reaction.

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NGSS.MS-PS1-2

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What is the difference between a physical change and a chemical change?

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A physical change alters the form of a substance but not its identity, while a chemical change results in the formation of new substances.

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NGSS.MS-PS1-4

NGSS.MS-PS1-5

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change.

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