Physical & Chemical Changes

Physical & Chemical Changes

Assessment

Flashcard

Physics

8th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a compound?

Back

A compound is a substance formed when two or more elements chemically bond together in a fixed ratio, such as CH₃CHO.

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, such as water freezing into ice.

3.

FLASHCARD QUESTION

Front

What is a chemical change?

Back

A chemical change is a process that involves the transformation of one or more substances into different substances, such as baking cookies.

4.

FLASHCARD QUESTION

Front

Which state of matter has the most energy?

Back

Gas has the most energy compared to solids and liquids.

5.

FLASHCARD QUESTION

Front

What is an example of a physical change?

Back

Crumpling paper is an example of a physical change.

6.

FLASHCARD QUESTION

Front

What is an example of a chemical reaction?

Back

Cookies baking in an oven is an example of a chemical reaction.

7.

FLASHCARD QUESTION

Front

What happens to the molecules during a physical change?

Back

During a physical change, the molecules may change their arrangement but their chemical structure remains the same.

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