Checkpoint Review
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is saturation in a solution?
Back
Saturation occurs when a solution can no longer dissolve additional solute, meaning it has reached its maximum concentration.
2.
FLASHCARD QUESTION
Front
What is the difference between speed and velocity?
Back
Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.
3.
FLASHCARD QUESTION
Front
What is an element?
Back
An element is a pure substance that cannot be broken down into simpler substances by chemical means and is made up of only one type of atom.
4.
FLASHCARD QUESTION
Front
What is the average speed formula?
Back
Average speed = Total distance / Total time.
5.
FLASHCARD QUESTION
Front
What is the significance of the number of atoms in a substance?
Back
The number of atoms in a substance determines its properties, reactivity, and how it interacts with other substances.
6.
FLASHCARD QUESTION
Front
What happens to the solubility of sugar in water as temperature increases?
Back
Generally, the solubility of sugar in water increases as the temperature increases.
7.
FLASHCARD QUESTION
Front
What is the definition of a solution?
Back
A solution is a homogeneous mixture composed of two or more substances, where one substance (the solute) is dissolved in another (the solvent).
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