Complete an analogy where one term is part of another. - SSAT Middle Level Verbal

SECTION 1

Why Do We Use Analogies?

Humans have been using analogies (comparisons that show how two pairs of words are related in the same way) for thousands of years to explain new ideas. Ancient Greek thinkers like Aristotle used analogies to teach their students. Over time, teachers realized that analogies are also a great way to test how well someone understands word relationships. That is why the SSAT includes analogy questions today.

~350 BC • Aristotle Teaches with Analogies

The Greek philosopher Aristotle used comparisons to help students connect unfamiliar ideas to things they already knew.

1900s • Analogies Enter Standardized Tests

Early intelligence and aptitude tests started using word analogies to measure reasoning skills in students.

1950s • The SSAT Is Established

The Secondary School Admission Test launches, featuring analogy questions as a core part of its Verbal section.

Today • Part-to-Whole Analogies on the SSAT

Part-to-whole is one of the most common analogy types tested. Knowing this relationship gives you a clear edge on test day.

So here is the big question: when you see two words on the SSAT, how do you figure out if one word is a part of the other? And once you know that, how do you pick the answer choice that matches? Let's find out.

SECTION 2

Core Principles of Part-to-Whole Analogies

A part-to-whole analogy is a comparison where one word names a piece or section of something, and the other word names the complete thing it belongs to. For example, a page is part of a book. On the SSAT, you need to identify this relationship and then find another pair of words that works the same way.

Identify the Relationship

Ask yourself: "Is one of these words a piece, section, or component of the other?" If yes, you have a part-to-whole (or whole-to-part) relationship.

Note the Direction

The order matters. PAGE is to BOOK means part → whole. BOOK is to PAGE means whole → part. Your answer must follow the same direction.

Build a Bridge Sentence

Create a simple sentence connecting the two words: "A ___ is a part of a ___." Then test each answer choice in that same sentence.

Eliminate and Choose

Cross out answer choices that do not fit your bridge sentence. The choice that fits perfectly — with the same direction and the same type of connection — is your answer.

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KEY TAKEAWAY

Think of part-to-whole analogies like a pizza. A slice is part of a pizza, just like a chapter is part of a novel. The slice cannot exist without the pizza, and the chapter cannot exist without the novel. If both pairs share this same "piece belongs to the whole" connection, the analogy works.

SECTION 3

Seeing Part-to-Whole Relationships

The diagram below shows how part-to-whole analogies work. On the left side, you see a pair of words where the first word is a part and the second word is the whole. On the right side, you need to find a matching pair that follows the same pattern. Notice how the arrow always points from the smaller piece to the larger thing it belongs to.

This diagram shows the structure of a part-to-whole analogy. The given pair (PAGE → BOOK) establishes the pattern, and the answer pair (ROOM → HOUSE) must follow the same pattern. The bottom row shows more everyday examples.

Notice something important in the diagram: the direction of the arrow is the same in both pairs. PAGE comes first (the part), and BOOK comes second (the whole). So in the answer pair, ROOM comes first (the part), and HOUSE comes second (the whole). Always make sure you keep the direction consistent.

SECTION 4

How to Solve Part-to-Whole Analogies Step by Step

Let's walk through a clear process you can follow every time you see an analogy question on the SSAT. This method is called the Bridge Sentence Method, and it works especially well for part-to-whole relationships.

The Bridge Sentence Method

Step 1 — Read the stem pair. The stem pair (the two words given to you at the top of the question) is your starting point. Look at both words carefully.

Step 2 — Build a bridge sentence. Connect the two words with a short, clear sentence that describes how they relate. For part-to-whole, your sentence might be: "A ____ is a part of a ____." Make it as specific as you can.

Step 3 — Test each answer choice. Plug each answer pair into your bridge sentence. Does it make sense? Does it keep the same direction (part first, then whole, or whole first, then part)?

Step 4 — Eliminate and choose. Cross out any choice that does not fit. Pick the one that fits your bridge sentence perfectly.

This flowchart shows the four steps of the Bridge Sentence Method. Start at the top by reading the stem pair, build your connecting sentence, test each choice, and then pick the one that fits.

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Watch the Direction!

If the stem pair goes from part → whole (like BRANCH is to TREE), your answer must also go from part → whole (like STRING is to GUITAR). If you pick an answer that goes whole → part, it will be wrong even if the words are related.

SECTION 5

Different Kinds of Part-to-Whole Relationships

Not all part-to-whole relationships look the same. Some involve physical parts of an object, while others involve members of a group or sections of a larger structure. Knowing these different types helps you spot the right answer more quickly.

Type	Description	Example (Part → Whole)
Physical Part	A physical piece that is attached to or inside a larger object.	WHEEL → CAR, BRANCH → TREE
Member of a Group	An individual that belongs to a larger collection or team.	PLAYER → TEAM, STAR → CONSTELLATION
Section of a Structure	A division or segment within an organized whole.	CHAPTER → BOOK, ACT → PLAY
Ingredient / Component	A substance or element that makes up a mixture or composition.	FLOUR → BREAD, WORD → SENTENCE
Geographic Part	A place that exists within a larger area.	STATE → COUNTRY, ROOM → BUILDING

Five common subtypes of part-to-whole relationships

When you are working through answer choices, try to match the type of part-to-whole relationship as closely as possible. If the stem pair is a physical part (like HANDLE is to DOOR), the best answer will also be a physical part of something, not a member of a group.

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Don't Confuse Part-to-Whole with Type-to-Category

A ROBIN is a type of BIRD, but a robin is not a "part" of a bird. That is a different analogy relationship called type-to-category (or specific-to-general). In part-to-whole, the smaller thing is physically or structurally inside or attached to the larger thing.

SECTION 6

Worked Example: Solving a Part-to-Whole Analogy

Let's solve a full SSAT-style analogy question together using the Bridge Sentence Method.

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Sample Question

FINGER is to HAND as TOOTH is to (A) dentist (B) bite (C) mouth (D) white (E) brush

Solving: FINGER is to HAND as TOOTH is to ___

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Step 1 — Read the Stem Pair

The stem pair is FINGER and HAND. Think about what a finger is and what a hand is. A finger is one of the small parts that stick out from your hand.
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Step 2 — Build a Bridge Sentence

"A FINGER is a part of a HAND." This is a part-to-whole relationship. The finger is physically attached to the hand.

Bridge: "A ___ is a part of a ___."
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Step 3 — Test Each Answer Choice

(A) "A TOOTH is a part of a DENTIST." — No, a tooth is not part of a dentist. A dentist is a person who fixes teeth. This is wrong. (B) "A TOOTH is a part of a BITE." — Not really. A tooth helps you bite, but a bite is an action, not a whole thing that contains teeth. (C) "A TOOTH is a part of a MOUTH." — Yes! A tooth is physically inside and attached to a mouth, just like a finger is part of a hand. (D) "A TOOTH is a part of a WHITE." — No. White is a color, not something a tooth belongs to. (E) "A TOOTH is a part of a BRUSH." — No. A brush is a tool used on teeth, but teeth are not parts of a brush.
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Step 4 — Eliminate and Choose

Only choice (C) fits the bridge sentence. TOOTH is to MOUTH follows the same part-to-whole pattern as FINGER is to HAND. Both pairs feature a body part that is physically attached to a larger body part.

Answer: (C) mouth

SECTION 7

Common Traps and How to Avoid Them

The SSAT is designed to include tempting wrong answers. Here are the traps students fall into most often on part-to-whole analogy questions, along with strategies for avoiding each one.

Trap	Why It's Tempting	How to Avoid It
Topic Association	The wrong answer is related to the word's topic but not in a part-to-whole way. (e.g., TOOTH → DENTIST)	Always plug the pair into your bridge sentence. "A tooth is a part of a dentist" makes no sense.
Reversed Direction	The answer has the right words but in whole-to-part order instead of part-to-whole. (e.g., FOREST → TREE when you need TREE → FOREST)	Check the order of the stem pair first. If the part comes first in the stem, the part must come first in the answer.
Function Instead of Part	The wrong answer describes what something does, not what it is part of. (e.g., TOOTH → BITE)	Ask: "Is the second word something the first word is physically inside of or attached to?" If not, it is not part-to-whole.
Quality or Description	The wrong answer is an adjective or quality of the word. (e.g., TOOTH → WHITE)	Remember: a quality describes something; it is not a "whole" that contains the thing.

Common traps on part-to-whole analogy questions

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KEY TAKEAWAY

Think of your bridge sentence as a security system. Every answer choice has to pass through it. If an answer does not fit the exact same sentence pattern as the stem pair, it gets blocked. Only the correct answer makes it through.

SECTION 8

Connecting Part-to-Whole to Other Analogy Types

Part-to-whole is just one of several analogy relationships you will see on the SSAT. Understanding how it compares to other types helps you quickly identify which relationship you are dealing with.

Relationship Type	What It Means	Example	How to Tell It Apart
Part → Whole	One term is a physical or structural piece of the other.	PETAL : FLOWER	Ask: "Is A physically inside or attached to B?"
Type → Category	One term is a specific kind of the other.	ROBIN : BIRD	Ask: "Is A a type or example of B?"
Synonym	Both terms mean nearly the same thing.	HAPPY : JOYFUL	Ask: "Do A and B mean the same thing?"
Antonym	The terms mean the opposite of each other.	HOT : COLD	Ask: "Do A and B mean the opposite?"
Function	One term is a tool or object; the other is what it does.	PEN : WRITE	Ask: "Is A used to do B?"

Comparing part-to-whole with other common analogy types

As you move through the SSAT, you will get faster at recognizing these patterns. The more analogy types you learn, the easier it becomes to narrow down what relationship the stem pair is showing you. Part-to-whole is one of the most common, so mastering it now gives you a strong foundation for all the others.

SECTION 9

Practice Problems

Question 1: CONCEPTUAL

BRANCH is to TREE as (A) bark is to rough (B) root is to water (C) wing is to airplane (D) leaf is to green (E) shade is to sun

Show answer

The correct answer is (C). A BRANCH is a part of a TREE, so you need a pair where the first word is a part of the second word. A WING is a physical part of an AIRPLANE, which matches perfectly. Choice (A) is wrong because "rough" is an adjective describing bark, not a whole that contains bark. Choice (B) is wrong because a root absorbs water, but water is not a whole that a root belongs to. Choice (D) is wrong because "green" is a color describing a leaf, not something a leaf is part of. Choice (E) is wrong because shade is created by the sun, but shade is not a part of the sun.

Question 2: BASIC

SLICE is to PIE as (A) crumb is to floor (B) chapter is to book (C) oven is to kitchen (D) sugar is to sweet (E) candle is to birthday

Show answer

The correct answer is (B). A SLICE is a section of a PIE, so you need a pair where the first word is a section of the second word. A CHAPTER is a section of a BOOK — this is the same type of part-to-whole relationship. Choice (A) is wrong because a crumb might fall on a floor, but a crumb is not a part of a floor. Choice (C) is tricky because an oven can be found inside a kitchen, but an oven is a separate appliance placed in a kitchen, not a structural section of it the way a slice is a section of a pie. Choice (D) is wrong because "sweet" is a quality of sugar, not a whole. Choice (E) is wrong because a candle is used at a birthday party, but it is not part of a birthday.

Question 3: INTERMEDIATE

STANZA is to POEM as (A) singer is to song (B) inning is to baseball game (C) melody is to beautiful (D) rhythm is to dance (E) author is to novel

Show answer

The correct answer is (B). A STANZA is a defined section within a POEM, so you need a pair where the first word is a defined section within the second word. An INNING is a defined section of a BASEBALL GAME. Both pairs involve structured divisions of a larger organized whole. Choice (A) is wrong because a singer performs a song but is not a structural section of the song. Choice (C) is wrong because "beautiful" is an adjective, not a whole that contains a melody. Choice (D) is wrong because rhythm is a quality of dance, not a section of a dance. Choice (E) is wrong because an author creates a novel but is not a part of the novel itself.

Question 4: APPLIED

PLAYER is to ORCHESTRA as (A) coach is to sport (B) student is to classroom (C) soldier is to army (D) teacher is to lesson (E) audience is to concert

Show answer

The correct answer is (C). A PLAYER is one member of an ORCHESTRA (a group of musicians), so you need a pair where the first word is one member of the second word (a larger group). A SOLDIER is one member of an ARMY. Both pairs show a single person who is part of an organized group. Choice (A) is wrong because a coach leads a sport but is not one member within the sport itself. Choice (B) is tempting because a student is found in a classroom, but a classroom is a physical room, not a group of people — the better match for that pattern would be "student is to class." Choice (D) is wrong because a teacher delivers a lesson, but a teacher is not a member of a lesson. Choice (E) is wrong because an audience attends a concert, but the audience is a separate group from the concert itself.

Question 5: CRITICAL THINKING

ISLAND is to ARCHIPELAGO as (A) mountain is to valley (B) lake is to river (C) star is to constellation (D) ocean is to wave (E) desert is to sand

Show answer

The correct answer is (C). An ARCHIPELAGO is a chain or group of islands, so an ISLAND is one member of an ARCHIPELAGO. Similarly, a CONSTELLATION is a group of stars, so a STAR is one member of a CONSTELLATION. Both pairs show a single natural object that is one member of a named group of those objects. Choice (A) is wrong because a mountain and a valley are neighboring land features, not a part-to-whole pair. Choice (B) is wrong because a lake and a river are both bodies of water, but neither is part of the other. Choice (D) is wrong because a wave is an action on the surface of an ocean, not one "member" that makes up the ocean in the same way. Choice (E) is wrong because sand is a substance found in a desert, but sand is a material — it does not relate to desert the same way a single island relates to a named group of islands.

SUMMARY

Lesson Summary

Summary

A part-to-whole analogy asks you to recognize when one word names a piece, section, or member of something named by another word. The key tool is the Bridge Sentence Method: build a clear sentence like "A ___ is a part of a ___" using the stem pair, then test every answer choice in that same sentence. Remember to watch the direction — if the stem goes part → whole, your answer must too.

Part-to-whole relationships come in several subtypes: physical parts (WHEEL → CAR), members of groups (PLAYER → TEAM), sections of structures (CHAPTER → BOOK), and more. Avoid common traps like topic association (picking a word that is related but not in a part-to-whole way) and reversed direction (getting the order backward). With practice, you will spot these patterns quickly and earn more points on the SSAT Verbal section.