What about "of" in Gulf of Mexico?

Small connecting words inside a place name stay lowercase; the big words carry the capitals. It mirrors the title rule students meet next (Beauty and the Beast), so noticing it here gives them a head start on capitalizing titles.

City is lowercase in "the city" but capital in Kansas City. Why?

Same word, different job. In Kansas City it's part of an official name; in "the city" it's a general word for any city. The is-it-a-name test decides every case, and it's the single most useful capitalization question a writer can ask.

3rd grade capitalizing places and holidays

3rd grade capitalizing places and holidays worksheets

Third graders handle multi-word place names fluently (Rocky Mountains, Kansas City, Gulf of Mexico) and know the half-capped trap (Main street) on sight. The general-versus-specific test, a street versus Oak Street, becomes automatic.

Free printable PDF worksheet, aligned to Common Core L.2.2.a.

Each print is a different sheet with its own answer key. You don't need to sign up.

The kind of sentences you'll fix

Cross out each small letter that should be a capital, and write the capital above it.

the gulf of mexico warms the shore.
Fixed: The Gulf of Mexico warms the shore.
we visit the coast of maine each august.
death valley bakes in august.

Every print pulls a new set of sentences at this level, so a make-up test or a second sibling gets a different mix.

What's on a 3rd grade sheet

3rd grade sheets draw from 60 sentences, 8 to a page. 2nd and 3rd grade print from the same 60 sentences. The teaching notes below are written for this grade. 2nd grade sheets print 7 to a page.

A few of the sentences, as the answer key corrects them:

We light candles on Valentine’s Day.
The Grand Canyon glows at sunset.
The whole block grills on Labor Day.

Fix it. Cross out each small letter that should be a capital, and write the capital above it. 8 sentences to fix per page.
Choose the sentence. Circle the letter of the sentence with the correct capital letters. 7 questions per page.

Every version prints on US Letter or A4, with its answer key on the last page.

How to teach this

Run the specific-or-general test aloud: "a lake" is general, "Lake Michigan" is one particular lake with a name. Maps are the natural playground here; five minutes hunting capitals on a road map is worth a worksheet. Note the small connector exception (Gulf of Mexico keeps of lowercase) if a sharp eye spots it.

Watch for: Every important word of a place name gets a capital: Main Street, not Main street. Only small joiners like of stay small: Gulf of Mexico. General words stay small: the street near my house, but Oak Street.

Common questions about 3rd grade capitalizing places and holidays

What about "of" in Gulf of Mexico?: Small connecting words inside a place name stay lowercase; the big words carry the capitals. It mirrors the title rule students meet next (Beauty and the Beast), so noticing it here gives them a head start on capitalizing titles.
City is lowercase in "the city" but capital in Kansas City. Why?: Same word, different job. In Kansas City it's part of an official name; in "the city" it's a general word for any city. The is-it-a-name test decides every case, and it's the single most useful capitalization question a writer can ask.

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Aligned to Common Core L.2.2.a. Reviewed by the One more sheet team. Content version 241, updated October 2026.

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