Chemical Vs Physical Changes

Chemical Vs Physical Changes

Assessment

Flashcard

Science

7th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a chemical change?

Back

A chemical change is a process that results in the formation of one or more new substances.

2.

FLASHCARD QUESTION

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

3.

FLASHCARD QUESTION

Front

Give an example of a chemical change.

Back

Burning wood, rusting of iron, and cooking food are all examples of chemical changes.

4.

FLASHCARD QUESTION

Front

Give an example of a physical change.

Back

Melting ice, dissolving sugar in water, and bending a paperclip are examples of physical changes.

5.

FLASHCARD QUESTION

Front

What indicates that a chemical reaction has occurred?

Back

The formation of a gas, change in color, or production of heat are indicators of a chemical reaction.

6.

FLASHCARD QUESTION

Front

What is the best definition of a chemical reaction?

Back

A change in matter that produces one or more new substances.

7.

FLASHCARD QUESTION

Front

What happens to molecules during a chemical change?

Back

During a chemical change, the bonds between molecules are broken and new bonds are formed, resulting in new substances.

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