Moments · NCERT Class 9

Cause & Effect

Every event in a story has a reason behind it and a result in front of it. A cause is why something happens; an effect is what happens as a result. Learn to spot the signal words that link them — because, so, since, therefore — to follow a chain where one effect becomes the next cause, and to infer a cause or effect the writer leaves unsaid. Every example here is original; we only borrow the title of the Moments story ‘In the Kingdom of Fools’. Tap each term to see what it means.

👥 3 topics⏱ ~20 min📝 12-question quiz

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The language of cause & effect

Cause and effect are two halves of one link. Tap each term to see what it does and how the ideas — why, what, the signal words and the chain — fit together when you read a story.

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The three big ideas

Cause — the reason an event happens; it answers the question “Why?”. The well ran dry, so the villagers walked to the river. The dry well is the cause.
Effect — what happens as a result; it answers “What happened?”. In the same sentence, walking to the river is the effect.
How to tell them apart — ask “Why did it happen?” to find the cause, and “What happened then?” to find the effect. The cause always sits earlier in the logic, even if it appears later in the words.
One to many — a single cause can have several effects (a heavy storm floods roads, fells trees and cuts power), and a single effect can have several causes (a poor harvest from bad seed, no rain and weak soil).

Cause signals — words that introduce the reason: because, since, as, due to. Since the lamp had no oil, the room stayed dark.
Effect signals — words that point to the result: so, therefore, as a result, consequently, thus. The lamp had no oil, so the room stayed dark.
The chain — in a story, one effect becomes the cause of the next event, making a chain: no oil → dark room → the traveller tripped → he dropped the jug.

Worked example. Read the sentence: He overslept, so he missed the bus. What is the cause?

Ask “Why did he miss the bus?” — because he overslept. So the cause is “he overslept.”

Find the effect. — “he missed the bus” is the result, the effect.

Spot the signal. — the word “so” joins them and points forward to the effect.

Answer: the cause is he overslept; the effect is he missed the bus.

Common mistake: the cause comes first in logic, even when the signal word sits in the middle. Words like “so” and “therefore” do not mark the cause — they point to the EFFECT. In “He overslept, so he missed the bus,” do not pick the part after “so” as the cause; the cause is the reason (he overslept), and the part after “so” is the result.

Not always stated — a writer often skips the link and trusts you to work it out. The boy walked in dripping wet. No reason is given, but you infer the cause: it was raining.
Use clues plus common sense — combine the details on the page with what you already know about the world to name a likely cause or effect.
Check it makes sense — a good inference is reasonable: ask “Could this cause really lead to that effect?” If the link is a stretch, look for a better one.
Infer the effect too — sometimes the cause is given and the result is left open: The cook added far too much salt. You infer the effect — the dish tasted bad.

Where you'll meet it

Cause & effect, at work

Understanding why events happen

Stories and history both move on cause and effect: a decision leads to a consequence, which sparks the next event. When you track the chain — this happened because of that, and so this followed — you stop reading a list of events and start understanding why the plot unfolds the way it does.

Writing clear explanations

Whenever you explain a result — in an answer, a report or an essay — you are linking cause to effect. Signal words like because, so and therefore make your reasoning easy to follow, so the reader sees exactly how one idea leads to the next instead of guessing the connection.