There is soup in the plate
There is soup in the plate.
There are four oranges in the bowl.
There is fish in the fridge.
There is chocolate on the table.
There is water in the glass.
There is meat in the plate.
There is a sandwich in the plate.
I have some doubts about the use of "on" and "in" in these sentences. Thank you.
5 Answers
Something would normally be "on" a plate.
There is meat on the plate There is a sandwich on the plate.
Otherwise, the rest is fine, 'in the fridge' and 'in the glass' and 'on the table' are all correct.
Then I would say "there is some fruit in the bowl". Is that it?
Yes and don't forget that soup is "in a bowl" not a plate 
in = goes into something that holds volume
on = lays on the surface.
I would only use "some" with the fruit because people don't generally count how many peices of fruit are in their bowls. (that may be what Heidita said but I am not sure of the Spanish ).
Try to think of a bowl as a container. You put things in a container. A plate on the other hand is usually fairly flat, it doesn't really contain the food, it merely gives it some clean place to lay. I hope this clears things up a bit. Heidita is partially correct about using the word some although it is still used without it just sounds a little less classy.
Con plate siempre on. Después de pensarlo, deberías decir some meat , some juice...no lo expliques y en paz. Si lo pregunta, que se dice así y punto
Try to think of a bowl as a container. You put things in a container.
Then I would say "there is some fruit in the bowl". Is that it?
