Use domain-specific math vocabulary: Which term names the number multiplying a variable in the expression ?
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8th Grade ELA Quiz
Practice Use Grade Appropriate Academic Vocabulary in 8th Grade ELA with focused quiz questions that help you check what you know, review explanations, and build confidence with test-style prompts.
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Use domain-specific math vocabulary: Which term names the number multiplying a variable in the expression 7x+3?
This quiz focuses on Use Grade Appropriate Academic Vocabulary, giving you a quick way to practice the rules, question types, and explanations that matter most for 8th Grade ELA.
Try each quiz question before looking at the correct answer. Use the explanations to review missed ideas, then come back to similar questions until the pattern feels familiar.
Use domain-specific math vocabulary: Which term names the number multiplying a variable in the expression 7x+3?
Explanation: Tests acquiring and using accurately grade-appropriate general academic vocabulary (words used across disciplines like analyze, significant, demonstrate) and domain-specific vocabulary (terms specific to subjects like photosynthesis in science, ratification in social studies) important to comprehension or expression. Academic vocabulary knowledge involves understanding (recognizing word meaning in reading) and using (selecting/employing words accurately in own communication). In the mathematical expression '7x + 3,' the domain-specific term 'coefficient' correctly names the number 7 that multiplies the variable x. This demonstrates understanding of precise mathematical vocabulary—coefficient specifically refers to the numerical factor of a term containing a variable, distinct from other mathematical components. The correct answer shows accurate use of domain-specific math vocabulary essential for mathematical communication and instruction. The error would be confusing mathematical terms—'integer' (any whole number, too general), 'exponent' (power to which number is raised, like 2 in x²), or 'ratio' (comparison of two quantities)—each is a math term but only coefficient specifically identifies the number multiplying a variable. Building domain-specific vocabulary in mathematics requires learning precise meanings: coefficient (number with variable), exponent (power), integer (whole number), ratio (comparison); recognizing that mathematical terms have exact definitions crucial for problem-solving; understanding that using correct terminology enables clear mathematical communication; and mastering such vocabulary is essential for following mathematical explanations and expressing mathematical thinking accurately.
What does the word implicit mean in this context? Throughout the story, the narrator makes several pointed comments about her friend's success, and readers sense her feelings are implicit.
Explanation: In this sentence, 'implicit' means suggested through hints rather than plainly stated. The narrator's feelings come across indirectly—through her pointed comments—rather than being announced outright, which is exactly what 'implicit' describes. The choice about something 'openly stated and directly spelled out' is the opposite meaning; that describes 'explicit,' where an idea is declared plainly rather than hinted at. The choice about ideas that are 'connected to the plot but shifting and inconsistent' misreads the word: 'implicit' refers to how an idea is communicated (indirectly), not to whether it stays steady or changes. The choice about being 'supported by facts, statistics, or measured evidence' confuses hinting with proving; 'implicit' meanings are inferred by a reader, not demonstrated with data. Knowing the contrast between 'implicit' (implied, indirect) and 'explicit' (stated outright) helps you analyze subtext in stories and unstated assumptions in nonfiction across every subject.
Select the word that best completes the sentence using an academic register: "One major that contributed to the city's population growth was the opening of a new factory that created jobs."
Explanation: A "factor" is one of several causes that combine to produce a result, which fits a sentence describing something that contributed to population growth, and it carries the formal, academic tone the sentence calls for. "Influence" suggests a force that shapes or affects something over time, not a specific cause you can point to as contributing to a measurable change like population growth. "Reason" is close in meaning but is a more everyday, conversational word that lowers the academic register the sentence requires. "Circumstance" means a surrounding condition or situation rather than an active cause that produces a result, so it does not match "contributed to" as precisely. Only "factor" names a specific contributing cause while keeping the sentence's academic tone, so it is the best choice.
Complete the sentence with the word that best fits an academic writing context: "To support her argument, the student used data that was directly to the research question."
Explanation: The best choice is "relevant" because it means directly connected to or bearing upon the matter at hand. Data that is relevant to a research question actually helps answer it, which is exactly what a writer needs to support an argument. "Tangential" means only loosely or indirectly related, drifting away from the main point—so tangential data would not directly support the research question. "Subjective" means based on personal feelings or opinions rather than facts; while it is an academic term, it describes the nature of information, not whether that information connects to the question. "Ambiguous" means unclear or open to more than one interpretation, which describes how something is understood, not how closely it relates to the research focus. Only "relevant" precisely names the direct connection between evidence and the research question that the sentence requires.
Use domain-specific science vocabulary: In a lab report, a student wrote, “We changed only the amount of sunlight and measured plant growth.” Which term correctly names the factor the student changed on purpose?
Explanation: The student decided to change only the amount of sunlight, so that is the factor being deliberately changed—the independent variable, the one thing an experimenter manipulates on purpose. The choice describing what the experimenter measures for changes names plant growth in this setup, which is the result of the change, not the factor changed. The choice describing a setup that receives no treatment names a comparison group, not the factor being changed. The choice describing a factor kept the same throughout names something held steady (like the type of plant or amount of water), which is the opposite of what was purposely changed. Only the term for the factor the experimenter changes on purpose fits what the student did in this experiment.
Use domain-specific science vocabulary: Which term best completes the sentence? "In plant cells, converts light energy into chemical energy stored in glucose."
Explanation: The sentence describes the process that uses light energy to build chemical energy stored in glucose, which is exactly what photosynthesis names. Plants capture sunlight and use it to make glucose, so this term fits the definition precisely. Cellular respiration is the opposite process: it breaks down glucose to release usable energy, and it does not convert light energy, so it fails the sentence's meaning. Transpiration is the movement and evaporation of water out of a plant through its leaves; it happens in plants but has nothing to do with turning light into glucose. Fermentation is a way cells release energy from glucose without oxygen, so like respiration it uses stored energy rather than capturing light to make glucose. All four are real science terms tied to plants or cells, but only photosynthesis describes converting light energy into chemical energy stored in glucose. Choosing correctly depends on knowing each term's precise scientific meaning rather than just recognizing that it sounds biological.
Select the word that best completes the sentence: The historian used letters and photographs from the time period as sources to understand how people actually lived.
Explanation: The correct answer is "primary." A primary source is an original, firsthand record created during the time period being studied. Letters and photographs made by people who lived then are firsthand evidence, so they are primary sources. "Secondary" is wrong because a secondary source is a later analysis or interpretation written about the period by someone who did not experience it, not the original documents themselves. "Credible" describes whether a source is trustworthy, but it does not name the type or origin of a source, so it does not fit the sentence's meaning of firsthand evidence from the time. "Supplementary" means extra or added material that supports a main source, which does not describe the original letters and photographs the historian relies on. Only "primary" names sources created during the period itself, which is exactly what the sentence describes.
Identify appropriate context: In which sentence is the word corroborated used correctly?
Explanation: The word "corroborated" means confirmed or supported by additional, independent evidence. It fits correctly in the sentence about a witness’s statement being backed up by security camera footage, because the footage is separate evidence that verifies the same events. The sentence about a coach telling the team to work harder confuses "corroborated" with motivating or encouraging—those aren't about confirming evidence. The sentence about a teacher writing instructions on the whiteboard treats the word as simply presenting or clarifying information, but corroboration requires a second source proving something true, not just repeating it. The sentence about a student moving across the library uses the word as a verb of motion, which it never means. Remember: "corroborated" belongs in contexts of proof and verification, where one piece of evidence confirms another—which is exactly what the security footage does for the witness.
In academic writing, what is the difference between analyze and summarize?
Explanation: When you analyze, you break a text into its parts and examine how they work together; when you summarize, you briefly restate its main ideas in your own words. The correct choice captures both of these meanings. The option about judging good or bad and disagreeing describes evaluating and arguing, not analyzing and summarizing. The option about exploring personal opinions and listing every detail is wrong because analysis examines the text itself, not just your feelings, and a summary condenses the main points rather than including everything. The option about rephrasing and rewording sentence by sentence describes paraphrasing, not true analysis or a brief summary. Only one choice defines both terms accurately.
Which word most precisely completes the sentence? "The fire alarm sounded and the sprinklers turned on ."
Explanation: "Simultaneously" means at the same time, which fits an alarm and sprinklers that respond to one emergency together, so it is the best choice. "Consecutively" means one right after another in a set order, which describes a sequence, not two events at once. "Intermittently" means starting and stopping at irregular intervals, which suggests the sprinklers keep switching off and on rather than activating together with the alarm. "Subsequently" means happening afterward, which places the sprinklers later in time instead of at the same moment as the alarm. Only "simultaneously" captures two events occurring together.