Adhesion, Cohesion & Surface Tension

Flashcard
•
Science
•
6th - 8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is adhesion?
Back
Adhesion is the tendency of different kinds of molecules to stick together. For example, water molecules sticking to glass.
2.
FLASHCARD QUESTION
Front
What is cohesion?
Back
Cohesion is the attraction between molecules of the same substance. For example, water molecules sticking to each other.
3.
FLASHCARD QUESTION
Front
What is surface tension?
Back
Surface tension is the elastic tendency of a fluid surface that makes it acquire the least surface area possible. It allows small objects to float on water.
4.
FLASHCARD QUESTION
Front
What two elements make up water?
Back
Hydrogen and oxygen.
5.
FLASHCARD QUESTION
Front
Why do water droplets form a spherical shape?
Back
Water droplets take a spherical shape due to cohesion, as water molecules are attracted to each other.
6.
FLASHCARD QUESTION
Front
What is capillary action?
Back
Capillary action is the ability of a liquid to flow in narrow spaces without the assistance of external forces, often seen when water moves up a thin tube.
7.
FLASHCARD QUESTION
Front
Which end of the water molecule has a slightly positive charge?
Back
The hydrogen end of the water molecule has a slightly positive charge.
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