quick help settle a family arguement - is 20cc the same volume as 200ml?

[sunnywong]

I have kudos to gain and face to lose

I'd been so busy reading the posts saying that a ml is the same as a cc that I was replying to that without reading the thread title. Sorry miss

I need some stickers I think for when the pupils write something utterly bizarre. I usually scrawl "WHAT?!", which is perhaps a tad aggressive...

c, placed before other abbreviations is an abbreviation for centi-, meaning one hundredth.

However in the case of liquid volumes, 'c' is an abbreviation for cubic or cubed.

Therefore cm3 or cc is an abbreviation for centimetre cubed or cubic centimetre respectively. That is, a volume of a cube whose three sides are a centimetre long.

Therefore 1 cm3 is one millionth (1/1,000,000) of a cubic metre (m3) - because 1 m3 = 100 cm 100 cm 100 cm = 1,000,000 cm3 or cc

Alternatively, one can use the unit ml instead of cm3 or cc.

In fact, to be academically correct, if you are using the SI system, the unit you should use is ml.

it would make more sense if litres were on the same scale as metres - so that a ml was on the same order of magnitude as a mm - but they aren't they are a factor of 10 different.

Come on science teachers - enlighten us as to why (I have forgotten - it is a long time since I did my science lessons).

precisely, tamum. So you can see why I became befuddled can't you>?

Because if you can work it out in decilitres it proves you're still sober enough to be served...?