What is a Chemical Change?
Science EOG Review

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Science
•
5th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A process where substances combine or break apart to form new substances, often accompanied by energy changes, color changes, or gas production.
2.
FLASHCARD QUESTION
Front
What is a Physical Change?
Back
A change that affects one or more physical properties of a substance without altering its chemical composition, such as melting or freezing.
3.
FLASHCARD QUESTION
Front
What happens when iron rusts?
Back
Iron reacts with oxygen and moisture in the air to form iron oxide, a new substance, indicating a chemical change.
4.
FLASHCARD QUESTION
Front
What is the effect of applying a stronger force on an object?
Back
It increases the speed of the object, demonstrating Newton's second law of motion.
5.
FLASHCARD QUESTION
Front
Which body systems are involved in lifting heavy objects?
Back
The Muscular and Skeletal systems work together to provide strength and support.
6.
FLASHCARD QUESTION
Front
What is Conduction?
Back
The transfer of heat through direct contact between materials, such as touching a hot stove.
7.
FLASHCARD QUESTION
Front
What is Convection?
Back
The transfer of heat through the movement of fluids (liquids or gases), where warmer areas rise and cooler areas sink.
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