The Oxford Learner's Dictionaries include this information. https://www.oxfordlearnersdictionaries.com Some items such as "news" seem plural but are actually uncountable. https://www.oxfordlearnersdictionaries.com/definition/english/news?q=news news noun BrE /njuːz/ ; NAmE /nuːz/ [uncountable] new information about something that has happened recently Some nouns such as "fruit" are countable and uncountable. https://www.oxfordlearnersdictionaries.com/definition/english/fruit_1?q=fruit fruit noun BrE /fruːt/ ; NAmE /fruːt/ [countable, uncountable] the part of a plant that consists of one or more seeds and flesh, can be eaten as food and usually tastes sweet tropical fruits, such as bananas and pineapples Eat plenty of fresh fruit and vegetables.

Check in the dictionary.

How much - uncountable How many - countable

This website has great information on countable vs uncountable nouns: https://www.ef.co.uk/english-resources/english-grammar/countable-and-uncountable-nouns/ Let me know if you have any other specific questions.

Nouns that can be measured are usually uncountable For example: powders,liquids... We usually don't count liquids and powders,we measure them.