What happens to the kinetic energy of molecules in warmer materials compared to cooler materials?
Weather Review - Molecules

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•
Science
•
6th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The molecules that make up a warmer material have more kinetic energy than the molecules that make up a cooler material.
2.
FLASHCARD QUESTION
Front
Can matter enter or leave a closed system?
Back
No, matter cannot enter or leave a closed system.
3.
FLASHCARD QUESTION
Front
What happens to less dense air?
Back
Less dense air rises.
4.
FLASHCARD QUESTION
Front
What occurs to air molecules when the air is cooled down?
Back
The molecules slow down and take up less space.
5.
FLASHCARD QUESTION
Front
Does heat increase kinetic energy?
Back
Yes, heat increases kinetic energy.
6.
FLASHCARD QUESTION
Front
Define kinetic energy in the context of molecules.
Back
Kinetic energy is the energy that molecules possess due to their motion; warmer molecules move faster and have more kinetic energy.
7.
FLASHCARD QUESTION
Front
What is density in relation to air?
Back
Density is the mass of air per unit volume; less dense air is lighter and rises.
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