What is a physical change?
Physical and Chemical Changes

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Science
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5th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
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 rusting, burning, and cooking.
3.
FLASHCARD QUESTION
Front
What is a chemical reaction?
Back
A chemical reaction is a process in which substances (reactants) undergo a transformation to form new substances (products). This process often involves breaking and forming chemical bonds.
4.
FLASHCARD QUESTION
Front
What is rust?
Back
Rust is a reddish-brown oxide that forms on iron or steel when it reacts with oxygen and moisture in the environment. It is an example of a chemical change.
5.
FLASHCARD QUESTION
Front
What are substances?
Back
Substances are forms of matter that have specific properties and a definite composition. Examples include water, oxygen, and gold.
6.
FLASHCARD QUESTION
Front
What does it mean to manipulate an object?
Back
To manipulate an object means to move or change its position or form. This can involve physical changes like bending, stretching, or reshaping.
7.
FLASHCARD QUESTION
Front
What is a mixture?
Back
A mixture is a combination of two or more substances that are not chemically bonded. Each substance retains its own properties. Examples include salad, air, and sand.
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