JDES Physical and Chemical Changes

JDES Physical and Chemical Changes

Assessment

Flashcard

Science

5th 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 dissolving.

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. It involves a chemical reaction and includes processes like burning, rusting, and digestion.

3.

FLASHCARD QUESTION

Front

What is soot?

Back

Soot is a black powdery substance that is produced when wood or other organic materials burn. It is a result of incomplete combustion.

4.

FLASHCARD QUESTION

Front

What happens to water when it boils?

Back

When water boils, it changes from a liquid to a gas (steam) due to the increase in temperature.

5.

FLASHCARD QUESTION

Front

What is rust?

Back

Rust is a reddish-brown flaky substance that forms when iron reacts with oxygen and moisture in the air, resulting in a chemical change.

6.

FLASHCARD QUESTION

Front

What is an example of a physical change?

Back

An example of a physical change is ice melting into water.

7.

FLASHCARD QUESTION

Front

What is an example of a chemical change?

Back

An example of a chemical change is wood burning to produce ash and smoke.

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