Why does mercury 'bubble' upwards when water bubbles downwards?

Subject: Why does mercury 'bubble' upwards when water bubbles downwards?

Date: Tue Dec 7 20:25:08 1999
Posted by Aaron Rose
Grade level: School: Camden Rockport High School
City: Camden State/Province: ME Country: USA
Area of science: Chemistry
ID: 944619908.Ch

Message:


When you put water in a graduated cylindar it "bubbles" 
downwards, you read the bottom of the bubble when 
reading how much water there is because it does not 
create a flat surface. Well mercury bubbles upwards, like 
in a thermometer, just the opposite of water. Why?

Re: Why does mercury 'bubble' upwards when water bubbles downwards?

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