Despite being a collective noun, verdura can also be used in its plural form, verdure, when talking about a number of vegetables. Queste verdure sono marce!

Is verdure masculine or feminine Italian?

verdure {feminine plural}

Can the word science be plural?

The noun science can be countable or uncountable. In more general, commonly used, contexts, the plural form will also be science. However, in more specific contexts, the plural form can also be sciences e.g. in reference to various types of sciences or a collection of sciences.