What about silent letters elsewhere, like in island?

English has scattered singletons (island, hour, half) that kids meet as sight words. The teams on this page are the learnable, rule-shaped part of the territory.

Why sort rather than just read a list?

Sorting forces a decision per word, which keeps attention on the pattern. Thirty small decisions beat one long look at a list.

3rd grade silent letters (kn, wr, mb)

3rd grade silent letters (kn, wr, mb) worksheets

Third graders handle the whole families fluently, add relatives like gn (sign, gnaw), and use word history to remember spellings that no longer match sounds.

Free printable PDF worksheet, aligned to Common Core RF.3.3.

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

The kind of words you'll complete and sort

Fill in the missing letters to make a real word, then write the whole word in its column.

en (a tiny brown songbird)inkle (a crease in cloth or skin)eelaing (twist water out of a towel)li (an arm, a leg, or a branch)ifeuckle (a finger joint)cru

Columns: silent k and silent w and silent b. Only kn turns "_ee" into a real word, so knee goes under silent k; the clue (twist water out of a towel) picks wr for "_ing", so wring goes under silent w; Only mb turns "la_" into a real word, so lamb goes under silent b.

Every print pulls a new set of words 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 30 words, 21 to a page. 2nd and 3rd grade print from the same 30 words. What changes is the standard (RF.3.3 here) and the teaching notes below.

Some of the words:

knifeknockknightknitwrapwrotecombclimbplumberhoneycomb

Complete and sort. Fill in the missing letters to make a real word, then write the whole word in its column. 21 words per page.

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

How to teach this

Share the fossil story: centuries ago, people pronounced the k in knight and the w in write. Spelling kept the old sounds like a photo album. History makes the spellings memorable instead of arbitrary.

Watch for: Silent letters come in fixed teams: kn, wr, mb. The silent letter is always the same one in each team, so kids can learn the teams instead of memorizing word by word. These letters were once pronounced (English speakers really said k-nee long ago). The sound left; the spelling stayed. Kids enjoy knowing the letters are fossils, not mistakes.

Common questions about 3rd grade silent letters (kn, wr, mb)

What about silent letters elsewhere, like in island?: English has scattered singletons (island, hour, half) that kids meet as sight words. The teams on this page are the learnable, rule-shaped part of the territory.
Why sort rather than just read a list?: Sorting forces a decision per word, which keeps attention on the pattern. Thirty small decisions beat one long look at a list.

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Aligned to Common Core RF.3.3. Reviewed by the One more sheet team. Content version 241, updated August 2026.

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