GrammarTOP.com

There are some juices on the table. (different types of juice)

Nouns That Can Be Countable and Uncountable

Sometimes, the same noun can be both countable and uncountable, often with a change of
meaning. The meaning will depend of the context.

Consider the following examples:

Our house has seven rooms. – Is there room for me to sit here? (‘rooms’ vs ‘space’)
Have you got a paper to read? – I want to write a letter. Have you got some paper?
(‘magazine’ vs ‘paper’)
There are four lights in our bedroom. – Close the curtain. There’s too much light!
(‘lamps’ vs ‘light’)
I had some interesting experiences while I was travelling. – They offered me the job
because I had a lot of experience. (‘things that happened to me’ vs ‘not experiences’)

TIP: Some words that are uncountable in English may be countable in
other
languages. In English these words are uncountable - that means that we
can't say 'a/an' ... (a bread, an advice) and they can't be plural
(advices, furnitures):

accommodation advice

information

fruit

homework news

transport

traffic

luggage

music

pasta

money

damage

behavior weather

How to Use Countables and Uncountables

Why is it so important to know whether a noun is countable or uncountable? That’s because
we use different words with countables and uncountables — see the rules below.

Countable Nouns