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5th-grade-vocabulary-words

English Vocabulary · Grade 5 Live Review Preview

5th Grade Vocabulary Words

Fifth-grade readers use increasingly precise vocabulary to compare sources, explain evidence, interpret literature, and learn independently across science, mathematics, and social studies. The curriculum emphasizes context clues, meaningful word parts, parts of speech, and language that strengthens both discussion and writing.

This independently authored 500-word beta curriculum is arranged in twenty pages of twenty-five words each. Words 1–300 include five cloze questions per page; words 301–500 remain fully visible and editable as list pages while the expanded practice layer is developed. References calibrated level and coverage only; all learner-facing definitions and sample sentences are original KSSR copy.

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500 words
Words 326–350 of 500
#WordPattern / part of speechMeaningSample sentence
326skeletonnounGrade 5 science wordគ្រោងឆ្អឹងA whale's skeleton contains bones shaped like those in other mammals.
327musclenounGrade 5 science wordសាច់ដុំThe heart is a powerful muscle.
328circulationnounGrade 5 science wordឈាមរត់Exercise can increase blood circulation.
329digestionnounGrade 5 science word1. ការរំលាយអាហារ 2. ជីរណាDigestion begins when food is chewed.
330microorganismnounGrade 5 science wordអតិសុខុមកាយSome kinds of microorganism help produce yogurt.
331bacterianounGrade 5 science wordបាក់តេរីHelpful bacteria live in healthy soil.
332virusnounGrade 5 science word1. វីសាណូ 2. វីរុស 3. មេរោគA virus can spread through cough droplets.
333fungusnounGrade 5 science wordផ្សិតThe damp log was covered by a pale fungus.
334parasitenounGrade 5 science word1. បរាសិត 2. បញ្ញើក្អែកA tick is a parasite that feeds on an animal's blood.
335immunitynounGrade 5 science wordអភ័យឯកសិទ្ធិVaccination can help the body develop immunity.
336vaccinenounGrade 5 science wordវ៉ាក់សាំងThe vaccine reduced the spread of the illness.
337infectionnounGrade 5 science wordដំបៅក្លាយThe doctor treated the cut to prevent infection.
338symptomnounGrade 5 science word1. រោគសញ្ញា 2. សញ្ញាA high fever can be a symptom of infection.
339treatmentnounGrade 5 science wordការព្យាបាលRest was part of the recommended treatment.
340recoververbGrade 5 science word1. ជាសះស្បើយ 2. យក​បាន​វិញThe injured bird may recover after several weeks of care.
341contagiousadjectiveGrade 5 science wordឆ្លងThe contagious illness moved quickly through the crowded camp.
342hygienenounGrade 5 science wordអនាម័យGood hand hygiene helps prevent infection.
343moleculenounGrade 5 science word1. អណូ 2. ម៉ូលេគុលA water molecule contains hydrogen and oxygen atoms.
344atomnounGrade 5 science word1. បរមាណូ 2. អាតូមAn atom contains a nucleus surrounded by electrons.
345elementnounGrade 5 science wordធាតុOxygen is an element found in air and water.
346compoundnounGrade 5 science wordសមាសធាតុWater is a compound made from hydrogen and oxygen.
347mixturenounGrade 5 science wordល្បាយ នTrail mix is a mixture whose ingredients remain separate.
348dissolveverbGrade 5 science wordរំលាយSalt will dissolve more quickly in warm water.
349chemicalnounGrade 5 science wordគីមីThe label identifies each chemical in the cleaning solution.
350mineralnounGrade 5 science word1. រ៉ែខនិជ 2. ខនិជQuartz is a common mineral in Earth's crust.

Vocabulary chart page

This page focuses on the word chart. Reading passages appear once in each three-page group, while cloze quizzes remain in the established enhanced range for this level.

Sources and curriculum references

These references guide selection and calibration. Definitions, sample sentences, readings, questions, and teaching notes are independently written and reviewed.