phase changes
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What happens when heat is added to a substance?
Back
Energy moves into the substance causing the molecules to speed up.
2.
FLASHCARD QUESTION
Front
What occurs to molecules when their kinetic energy increases?
Back
The molecules move faster.
3.
FLASHCARD QUESTION
Front
What are the three main states of matter?
Back
Solid, Liquid, Gas.
4.
FLASHCARD QUESTION
Front
What is the term for the change of one state of matter to another?
Back
Phase Change.
5.
FLASHCARD QUESTION
Front
What causes condensation on a cold glass?
Back
The cold liquid in the glass cools the air around it, making it condense into a liquid.
6.
FLASHCARD QUESTION
Front
What is melting?
Back
The process of a solid turning into a liquid when heat is added.
7.
FLASHCARD QUESTION
Front
What is freezing?
Back
The process of a liquid turning into a solid when heat is removed.
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