8th Grade Unit #3 Molecules in Motion
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the main difference between solids and liquids?
Back
Solids have a definite shape, while liquids do not.
2.
FLASHCARD QUESTION
Front
What determines the temperature of a substance?
Back
The speed of the molecules determines the temperature.
3.
FLASHCARD QUESTION
Front
What happens to the particles in a solid when it is heated?
Back
The particles move faster.
4.
FLASHCARD QUESTION
Front
Does air have mass?
Back
Yes, air has mass.
5.
FLASHCARD QUESTION
Front
What causes food coloring to spread in water?
Back
Water molecules are in motion.
6.
FLASHCARD QUESTION
Front
Define 'molecule'.
Back
A molecule is the smallest unit of a chemical compound that retains its chemical properties.
7.
FLASHCARD QUESTION
Front
What is the state of matter with a definite volume but no definite shape?
Back
Liquid.
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