
States of Matter and Phase Changes
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What are the three main states of matter?
Back
Solid, Liquid, Gas.
2.
FLASHCARD QUESTION
Front
What is the process of a liquid turning into a gas called?
Back
Evaporation.
3.
FLASHCARD QUESTION
Front
What is the process of a solid turning into a liquid called?
Back
Melting.
4.
FLASHCARD QUESTION
Front
What is the process of a liquid turning into a solid called?
Back
Freezing.
5.
FLASHCARD QUESTION
Front
What is the process of a gas turning into a liquid called?
Back
Condensation.
6.
FLASHCARD QUESTION
Front
What is the measure of the average kinetic energy of molecules in a substance?
Back
Temperature.
7.
FLASHCARD QUESTION
Front
What happens to the molecules in a solid when it melts?
Back
They gain energy and move more freely.
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