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Term 2G2 / G3

Sec 2 Science WA2 practice paper

WA2 usually falls in Term 2. After forces and heat, many classes move through chemical changes and then ecosystems — the rest of a typical Textbook 2A block. Schools do not all stop at the same chapter, so treat this scope as a common pattern, not a rule.

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Total marks
30
Time
40 min
Covers
Chapters 3–4
Format
10 MCQ + 4 structured

The paper and mark scheme

Set out like a school paper, with a separate mark scheme for checking.

Question paper

WA2 Practice Paper

30 marks · 40 min · 5 pages

10 multiple-choice questions and structured questions with answer lines. Chapters 3–4.

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Mark scheme

PRO

WA2 Practice Paper — mark scheme

Answers · Marking points · 3 pages

Model answers with a mark for each creditworthy point — for marking at home or in class.

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What’s tested

Chapter 3 (chemical changes) and Chapter 4 (interactions within ecosystems). Electrical systems and the human body topics are more often later in the year and in the end-of-year paper.

  1. 3Chemical ChangesTheme 4 · InteractionsNotes & quiz
  2. 4EcosystemsTheme 4 · InteractionsNotes & quiz

How to use this paper

  1. 1Print the paper, or open the PDF and write on paper.
  2. 2Set a timer for 40 min and work without notes.
  3. 3Mark your answers with the mark scheme, one point at a time.
  4. 4Redo every question you lost marks on, then revise that topic.

Preview

The first questions of Section A, as they appear on the paper.

Open the full paper

Section A: Multiple choice[10 marks]

Answer all questions. For each question, write the letter (A, B, C or D) of the correct answer in the brackets provided.

  1. 1

    Iron rusts only when both of these are present.

    1. Aoxygen and water
    2. Boxygen and oil
    3. Cwater and paint
    4. Dnitrogen and water
    ( )
  2. 2

    Hydrochloric acid is added to sodium hydroxide until the solution is neutral. The products are

    1. Aonly hydrogen gas
    2. Bonly water
    3. Ca salt and water
    4. Da salt and hydrogen
    ( )
  3. 3

    In a food chain, the organism that makes its own food using light is the

    1. Aconsumer
    2. Bproducer
    3. Cdecomposer
    4. Dpredator
    ( )
  4. 4

    Which change is a chemical change?

    1. Aice melting
    2. Bsalt dissolving in water
    3. Csteam condensing
    4. Dmagnesium burning in air
    ( )

Revision checklist

  • Tell a chemical change from a physical change, and recall the conditions for rusting.
  • Write what an acid and an alkali produce, and recall the hydrogen test.
  • Read a food chain: producer, consumer, predator, prey, and the direction of the arrows.
  • Give one biotic factor and one abiotic factor in an unfamiliar habitat.
  • Sit this paper in 40 minutes and mark it with the mark scheme.

Exam tips

  • Rusting needs both oxygen and water. Paint, oil or a dry place can stop it.
  • Food-chain arrows show energy transfer, from food to feeder.
  • A population change needs a reason: more food, less food, or more predators.
  • Name a specific observation. “A reaction happens” scores nothing.

Questions about the WA2

What is tested in Sec 2 Science WA2?

There is no single national list. A common Term 2 block, after forces and heat, is chemical changes and interactions within ecosystems. Some schools include part of electrical systems instead. Check your school’s assessment outline.

Why is there no Sec 2 WA3 paper here?

Published school outlines do not agree on a third weighted assessment. Sec 1 WA3 is left as “in preparation” for the same reason at that point in the year. The Sec 2 end-of-year paper covers the later chapters.

How long is this paper?

This practice paper has 30 marks and takes 40 minutes.