Chemical and Physical Change

Chemical and Physical Change

Assessment

Flashcard

Science

5th Grade

Practice Problem

Hard

Created by

Jordan McFarlane

FREE Resource

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9 questions

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1.

FLASHCARD QUESTION

Front

What are physical properties?

Back

Physical properties are measurable properties that can be seen and determined without changing the chemical properties of an object. Examples include color, hardness, area, length, strength, and temperature.

2.

FLASHCARD QUESTION

Front

What are chemical properties?

Back

Chemical properties are properties that can be measured only by chemically changing an object. For example, paper starts to burn at around 450°F, combining with oxygen to form new substances.

3.

FLASHCARD QUESTION

Front

What is a physical change?

Back

A physical change occurs when matter changes its physical properties but not its chemical properties. An example is salt dissolving in water; if the water evaporates, the salt remains.

4.

FLASHCARD QUESTION

Front

What is a chemical change?

Back

A chemical change happens when matter breaks down into two or more substances or when substances combine to form a new substance. Examples include hydrogen peroxide forming bubbles and vinegar with baking soda creating foam.

5.

FLASHCARD QUESTION

Front

What is a chemical reaction?

Back

A chemical reaction is a process where one or more substances change chemically into different substances. An example is iron combining with air to form rust.

6.

FLASHCARD QUESTION

Front

What is a mixture?

Back

A mixture contains two or more substances that are not chemically combined. An example is salted popcorn.

7.

FLASHCARD QUESTION

Front

How can you identify a mixture?

Back

A mixture can be identified if you can physically separate it into its original substances. For example, evaporating water from salt water leaves behind salt.

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