eng　　ｆ１ 10 mark

Countable nouns:
-things you can count them, such as chairs, pens...

Uncountable nouns:
-Any kind of liquid (e.g.water, juice)
-bread
-rice
-hair
-information
-...

In fact, there's no ways to let you know how to differentiate them.
But mostly all things which are dificult to count like rice and hair etc. are always uncountable.

Countable nouns
Can be counted, is a thing, example, phones, apples, oranges, these things are countable

Uncountable nouns
Cannot be counted, is not a thing, like salad dressing, water, salt, vinegar,oil
Uncountable nouns - liquid stuff cannot be counted...

countable nouns (數到) eg.apples,oranges....(always include 's')
uncountable nouns (數5到) eg.water,butter,time,hair....(always no 's')