MadSci Network: Astronomy

Subject: Do comets really contain any frozen water?

Date: Fri Jun 10 14:47:21 2005
Posted by Marilyn
Grade level: 4-6 School: Warner Elementary
City: Los Angeles State/Province: CA Country: USA
Area of science: Astronomy
ID: 1118432841.As

Our students are confused over the composition of comets.  Some books state they are 
mainly made up of frozen gases (methane, ammonia, carbon  dioxide, carbon 
monoxide), and  bits of dust. Other books refer to frozen ices. The students know that 
frozen CO2 is dry ice.  Is there any frozen water in comets?

Re: Do comets really contain any frozen water?

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