What is density?
Middle School Science Review Assessment

Flashcard
•
Science
•
6th - 8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
Density is the mass of an object divided by its volume, often expressed in grams per cubic centimeter (g/cm³). It determines how heavy an object is for its size.
2.
FLASHCARD QUESTION
Front
How do you arrange liquids by density?
Back
To arrange liquids by density, you must measure their mass and volume, then calculate their density. The liquid with the highest density will be at the bottom.
3.
FLASHCARD QUESTION
Front
What is friction?
Back
Friction is a force that opposes the motion of two surfaces in contact. It is necessary for walking and driving.
4.
FLASHCARD QUESTION
Front
What is gravity?
Back
Gravity is a force that attracts two bodies towards each other, depending on their masses and the distance between them.
5.
FLASHCARD QUESTION
Front
What is the difference between mass and weight?
Back
Mass is the amount of matter in an object, while weight is the force of gravity acting on that mass.
6.
FLASHCARD QUESTION
Front
What is the Earth’s rotation?
Back
The Earth's rotation is the spinning of the Earth on its axis, which takes approximately 24 hours and causes day and night.
7.
FLASHCARD QUESTION
Front
What is the Earth’s revolution?
Back
The Earth's revolution is the movement of the Earth around the Sun, which takes about 365 days and defines a year.
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