Ask the teacher.
Oh, you wanted a chemistry way? Qualitative analysis. I can't give you a step by step guide because there are so very many possible steps. Checking the pH could rule out entire categories of compounds pretty quickly.
Some are, some aren't. Coffee is a liquid that isn't particularly clear. Vodka is another liquid that is clear.
chemistry
semen should be a thick clear substance
amphetemines
Have you been fasting or on an all liquid diet? This could be the cause. Otherwise you should consult a doctor
look like liquid
The only group I can think of which is without clear boundaries or common identity is Anonymous.
No apple sauce is not a clear liquid! =)
Some are, some aren't. Coffee is a liquid that isn't particularly clear. Vodka is another liquid that is clear.
Many liquid glues dry clear. All cyano-acrylates do.
chemistry
Clear quarts of what liquid? ;)
It infected
clear liquid
The liquid was a solution.
The clear liquid could be indicative of a basilar skull fracture.
semen should be a thick clear substance