Big Idea 9: Physical and Chemical Changes

Big Idea 9: Physical and Chemical Changes

Assessment

Flashcard

Science

4th Grade

Hard

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15 questions

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1.

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. Examples include melting, freezing, and boiling.

2.

FLASHCARD QUESTION

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances. Examples include burning, rusting, and cooking.

3.

FLASHCARD QUESTION

Front

What happens to a substance during a physical change?

Back

The substance may change its form or appearance, but its chemical identity remains the same.

4.

FLASHCARD QUESTION

Front

What happens to a substance during a chemical change?

Back

The substance transforms into one or more new substances with different properties.

5.

FLASHCARD QUESTION

Front

Can a physical change be reversed?

Back

Yes, many physical changes can be reversed, such as freezing and melting.

6.

FLASHCARD QUESTION

Front

Can a chemical change be reversed?

Back

Most chemical changes cannot be easily reversed, as they create new substances.

7.

FLASHCARD QUESTION

Front

What is an example of a physical change?

Back

Water boiling is an example of a physical change.

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