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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 wordthe framework of bones supporting an animal's bodyA whale's skeleton contains bones shaped like those in other mammals.
327musclenounGrade 5 science wordbody tissue that contracts to produce movementThe heart is a powerful muscle.
328circulationnounGrade 5 science wordthe movement of blood through the bodyExercise can increase blood circulation.
329digestionnounGrade 5 science wordthe process of breaking food into substances the body can useDigestion begins when food is chewed.
330microorganismnounGrade 5 science worda living thing too small to see without magnificationSome kinds of microorganism help produce yogurt.
331bacterianounGrade 5 science wordmicroscopic single-celled organisms, some helpful and some harmfulHelpful bacteria live in healthy soil.
332virusnounGrade 5 science worda tiny infectious agent that reproduces inside living cellsA virus can spread through cough droplets.
333fungusnounGrade 5 science wordan organism such as a mushroom, mold, or yeastThe damp log was covered by a pale fungus.
334parasitenounGrade 5 science wordan organism that lives on or inside another organism and takes nutrients from itA tick is a parasite that feeds on an animal's blood.
335immunitynounGrade 5 science wordthe body's ability to resist a particular infectionVaccination can help the body develop immunity.
336vaccinenounGrade 5 science worda preparation that trains the immune system to resist a diseaseThe vaccine reduced the spread of the illness.
337infectionnounGrade 5 science wordan illness caused when harmful organisms enter the bodyThe doctor treated the cut to prevent infection.
338symptomnounGrade 5 science worda physical sign or feeling that may indicate illnessA high fever can be a symptom of infection.
339treatmentnounGrade 5 science wordcare or medicine used to improve an illness or injuryRest was part of the recommended treatment.
340recoververbGrade 5 science wordto return to health or a normal conditionThe injured bird may recover after several weeks of care.
341contagiousadjectiveGrade 5 science wordable to spread from one person or organism to anotherThe contagious illness moved quickly through the crowded camp.
342hygienenounGrade 5 science wordpractices that keep people and places clean and healthyGood hand hygiene helps prevent infection.
343moleculenounGrade 5 science worda group of atoms joined together as the smallest unit of a substanceA water molecule contains hydrogen and oxygen atoms.
344atomnounGrade 5 science wordthe smallest unit of an element that keeps its propertiesAn atom contains a nucleus surrounded by electrons.
345elementnounGrade 5 science worda pure substance made of one kind of atomOxygen is an element found in air and water.
346compoundnounGrade 5 science worda substance formed when two or more elements join chemicallyWater is a compound made from hydrogen and oxygen.
347mixturenounGrade 5 science wordtwo or more substances combined without forming a new substanceTrail mix is a mixture whose ingredients remain separate.
348dissolveverbGrade 5 science wordto mix completely into a liquidSalt will dissolve more quickly in warm water.
349chemicalnounGrade 5 science worda substance with a particular composition and set of propertiesThe label identifies each chemical in the cleaning solution.
350mineralnounGrade 5 science worda naturally occurring solid with a definite chemical structureQuartz 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.