Chemical Reactions

Chemical Reactions

Assessment

Flashcard

Science

6th - 8th 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 where a substance transforms into a different substance, resulting in the formation of new chemical properties.

2.

FLASHCARD QUESTION

Front

How does a chemical change differ from a physical change?

Back

A chemical change creates a new substance, while a physical change does not.

3.

FLASHCARD QUESTION

Front

What are some signs that a chemical change has occurred?

Back

Signs include unexpected color change, temperature change, gas production (bubbles), and formation of a precipitate.

4.

FLASHCARD QUESTION

Front

What is an example of a chemical change?

Back

Burning wood is a chemical change because it transforms into ash and smoke, which are different substances.

5.

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.

6.

FLASHCARD QUESTION

Front

Can you name a sign that is NOT indicative of a chemical change?

Back

Change in shape is NOT a sign of a chemical change.

7.

FLASHCARD QUESTION

Front

What happens to molecules during a chemical change?

Back

During a chemical change, molecules rearrange to form new substances.

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