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Author Question: Why (if you are careful) are you able to float a needle on the surface of water? (Read 1419 times)

Mr. Wonderful

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on: Apr 23, 2014
Why (if you are careful) are you able to float a needle on the surface of water?
A) Water has adhesive properties.
B) The surface tension that is a result of water's cohesive properties makes this possible.
C) The covalent bonds that hold a water molecule together are responsible for this ability.
D) A single needle is less dense than water.


Millan

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Reply #1 on: May 9, 2014
This is for essentials biology, right? the answer is B. Bye for now.


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Mr. Wonderful

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Reply #2 on: May 9, 2014
Thank you, you were right :D


Celeste

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Reply #3 on: May 12, 2014
[member=9]Millan[/member] Thanks, sir!


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