Propolis jest na ramce pszczelarskiej.

Because the preposition na takes the locative case when it means location.

• dictionary form: ramka = frame
• after na for a fixed location: na ramce = on the frame

So:

• ramka = frame
• na ramce = on the frame

If there were movement onto the frame, Polish would usually use the accusative instead:

• na ramkę = onto the frame

Because adjectives must agree with the noun they describe.

Here, pszczelarskiej describes ramce, and ramce is:

• feminine
• singular
• locative

So the adjective also has to be feminine singular locative:

• ramka pszczelarska = a beekeeping frame
• na ramce pszczelarskiej = on the beekeeping frame

This is normal adjective agreement in Polish.

Word by word:

• Propolis = propolis
• jest = is
• na = on
• ramce = frame, in the form used after na for location
• pszczelarskiej = beekeeping / apiarist-related / for beekeeping

So ramce pszczelarskiej means beekeeping frame or more naturally a beehive frame / hive frame, depending on context.

Because na often means on in the physical sense: something is resting on, attached to, or located on a surface/object.

So:

• Propolis jest na ramce = The propolis is on the frame.

This fits the idea that propolis is found on the beekeeping frame, not inside it.

A useful contrast:

• na ramce = on the frame
• w ramce = in the frame

In this context, na is the natural choice.

Yes, in a normal sentence like this, jest is the standard and natural form.

Polish sometimes omits to be in certain structures, especially informal notes, headlines, or sentences with to, but with a location statement like this, jest is normally used:

• Propolis jest na ramce pszczelarskiej.

That is the ordinary, complete sentence.

Yes. Polish word order is more flexible than English, because the endings carry a lot of grammatical information.

The sentence given:

• Propolis jest na ramce pszczelarskiej.

is a neutral way to say it.

You could also say:

• Na ramce pszczelarskiej jest propolis.

This sounds more like On the beekeeping frame, there is propolis and puts more focus on the location.

So the word order can change, but the emphasis changes too.

It is in the nominative, because it is the subject of the sentence.

• Propolis = the thing being talked about
• jest = is
• na ramce pszczelarskiej = on the beekeeping frame

So Propolis stays in its basic dictionary form here.

Grammatically, propolis is treated as a masculine singular noun in Polish.

It comes from pszczelarstwo (beekeeping) and pszczelarz (beekeeper).

So pszczelarski / pszczelarska / pszczelarskie means something like:

• beekeeping
• apiary-related
• used in beekeeping

In this sentence, ramka pszczelarska is not just any frame. It means a frame used in beekeeping, so in natural English you might translate it as:

• beekeeping frame
• hive frame
• beehive frame

depending on how technical or natural you want the English to sound.

A rough English-friendly guide would be:

• ramce ≈ RAHM-tseh
• pszczelarskiej ≈ pshcheh-LAR-skyey

The difficult part is the beginning pszcz-. It is a compressed Polish consonant cluster, roughly like:

• p
  • sh
    • ch

but said smoothly together.

A rough pronunciation of the whole sentence:

• pro-PO-lis yest na RAHM-tseh pshcheh-LAR-skyey

That is only an approximation, but it is a useful starting point.

Usually no, not if you mean on the frame.

• na ramce = on the frame
• w ramce = in the frame

Since propolis is typically deposited on parts of the hive or frame, na is the natural preposition here.

If you changed it to w, the meaning would change too.

Yes, it is grammatical and understandable.

A native speaker might also choose a slightly different wording depending on context, especially if they want a more technical or more natural beekeeping expression, but the sentence itself is correct:

• Propolis jest na ramce pszczelarskiej.

It is a straightforward statement meaning that propolis is located on the beekeeping frame.