How much soup is there?
There is a lot of soup. (The bowl of soup is more than three quarters full).
How much soup is there?
There is only a little soup. (The bowl of soup is less than half full)
If we do not know it is a lot or a little soup, we can say
There is some soup.
We use "a little" and "much" to refer to uncountable nouns only. This means nouns that you can not count.