Science DBA Review
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What happens to the atoms in matter when temperature increases?
Back
The atoms in matter move faster and may change state (e.g., solid to liquid).
2.
FLASHCARD QUESTION
Front
What is a chemical formula?
Back
A representation using letters and numbers that shows the types and numbers of atoms in a substance.
3.
FLASHCARD QUESTION
Front
What does a graph of motion show?
Back
It visually represents the distance and direction of an object's movement over time.
4.
FLASHCARD QUESTION
Front
How do you determine the concentration of a solution?
Back
Concentration is determined by the amount of solute in a given volume of solvent.
5.
FLASHCARD QUESTION
Front
What is Newton's Third Law of Motion?
Back
For every action, there is an equal and opposite reaction.
6.
FLASHCARD QUESTION
Front
What is the state of matter?
Back
The distinct forms that different phases of matter take on, such as solid, liquid, and gas.
7.
FLASHCARD QUESTION
Front
What is the difference between physical and chemical changes?
Back
Physical changes do not alter the chemical composition of a substance, while chemical changes do.
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