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Writing an Explanation: Cause and Effect, Sequence and Connectives — Answers

Answer sheet with model answers and success criteria for the Year 8 informative writing worksheet.

Success TutoringWorksheetsAnswer sheetYear 8 · English · Informative Writing

Writing an Explanation: Cause and Effect, Sequence and Connectives — Answers

Part A: How the explanation works

An explanation has: a title (often a how or why question), an opening statement, a sequence of steps linked by cause and effect, and a concluding statement.

1.What does paragraph (1) do?
  1. AIt defines the subject and says when it happens
  2. BIt gives the writer's opinion about rainbows
  3. CIt describes the final step
  4. DIt tells a story

Answer: It defines the subject and says when it happens

An explanation usually opens by stating what the phenomenon is, so the reader knows what is being explained.

2.Which paragraphs explain the process step by step?
  1. A(1) only
  2. B(2), (3) and (4)
  3. C(5) only
  4. D(1) and (5)

Answer: (2), (3) and (4)

The middle paragraphs give the sequence: light enters and bends, splits into bands, reflects, and leaves towards the viewer.

3.What causes white light to spread out into separate bands inside a raindrop?

Answer: Each wavelength of light bends (refracts) by a slightly different amount, so the wavelengths separate into bands.

4.Find two connectives in paragraph (4) that show cause and effect.

Answer: As a result; therefore.

5.Why is a definition of refraction included in paragraph (2)?

Answer: Refraction is a technical term the explanation relies on. Defining it in plain words (bending) helps readers understand the steps that follow.

6.What does the concluding paragraph add?

Answer: It sums up the big idea behind the process: that sunlight contains a hidden spectrum, revealed when water and light meet at the right angle. It does not add a new step.

Part B: Connectives

Fill each gap with a connective that does the job in parentheses. Use: because, Therefore, Then, As, Finally.

7.Plants need sunlight to make food. (answer space), a plant left in a dark cupboard will slowly weaken. (result)

Answer: Therefore

Therefore, As a result, Consequently and So all show a result.

8.Ice floats (answer space) it is less dense than liquid water. (reason)

Answer: because

Because and since both give a reason.

9.Water in the ocean is heated by the sun. (answer space), it evaporates and rises into the air. (next step in time)

Answer: Then

Then, Next and After this all show the next step.

10. (answer space) the warm, moist air rises, it cools and forms tiny droplets. (at the same time)

Answer: As

As and When both show that two things happen together.

11.The droplets join together and become heavier. (answer space), they fall as rain. (final step)

Answer: Finally

Finally, Eventually and In the end all signal the last step.

Part C: From flow chart to paragraph

12.Turn this flow chart into a short paragraph using at least three connectives: Heavy rain falls for days → soil cannot soak up more water → water runs over the ground into rivers → rivers rise above their banks → nearby land floods.

Answer: Model: When heavy rain falls for several days, the soil eventually becomes so full that it cannot soak up any more water. As a result, the extra water runs across the ground and into rivers. Because the rivers receive more water than they can carry, they rise above their banks. Consequently, the land nearby is flooded.

13.Explain the difference between a time connective and a cause-and-effect connective. Give one example of each.

Answer: A time connective shows when something happens or the order of steps (first, then, after that). A cause-and-effect connective shows why something happens or what results from it (because, as a result, therefore).

Part D: Your turn

14.Your turn: write an explanation (about 180–220 words) that answers one of these questions: (a) How does a volcano erupt? (b) Why do we have day and night? (c) How does bread rise? (d) Why do leaves change from green to yellow and red in autumn? Include a title, an opening statement, at least three linked steps and a concluding statement. Use at least four connectives and underline them.

Model answer: Why Do We Have Day and Night? — Day and night are the regular changes from light to darkness that happen everywhere on Earth. They are caused by the way Earth spins. Earth rotates on its axis, an imaginary line running from the North Pole to the South Pole. It completes one full turn about every 24 hours. Because the sun can only light up one half of Earth at a time, the side facing the sun has daytime. Meanwhile, the side facing away is in shadow, so it has night. As Earth keeps turning, places move gradually from the dark side into the sunlight. As a result, people see the sun appear to rise in the east in the morning. Later, as their part of Earth turns away again, the sun appears to set in the west and night begins. Therefore, the sun does not really move across the sky at all. Day and night are simply the result of our planet turning, again and again, in the light of the sun.

Success criteria:

  • Title and opening statement that defines the subject
  • At least three steps in a logical sequence
  • Causes and effects are explained, not just listed
  • At least four time or cause-and-effect connectives, underlined
  • Concluding statement sums up the process
  • Present tense, third person and accurate information
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Marking tips

  • Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
  • For open-ended tasks, use the success criteria as a checklist rather than looking for one "right" answer.
  • Celebrate what went well first, then pick one thing to work on next.