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🧾 CBSE · Class 7

Class 7 Science: Changes Around Us Physical and Chemical Worksheet (with Answers)

A free, print-ready worksheet on Changes Around Us Physical and Chemical for CBSE Class 7 Science, with a matching answer key. Use the sample below, or build your own with the exact mix of questions you need — no login, no ads.

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Sample worksheet

7 of 17 questions from this chapter. Generate your own for the full set, more variations, and a clean print layout.

  1. 1. In a physical change, a new substance is:
    • (a) always formed
    • (b) burnt
    • (c) not formed
    • (d) rusted
  2. 2. Burning of paper is a:
    • (a) physical change
    • (b) reversible change
    • (c) state change
    • (d) chemical change
  3. 3. Melting of ice is:
    • (a) a physical change
    • (b) a chemical change
    • (c) irreversible
    • (d) rusting
  4. 4. Rusting requires iron, oxygen and:
    • (a) sugar
    • (b) moisture
    • (c) salt only
    • (d) plastic
  5. 5. What happens to the substance in a physical change?
  6. 6. Give one sign of a chemical change.
  7. 7. Distinguish between physical and chemical changes, giving examples and signs.
View answers
  1. 1. (c) not formed — No new substance is formed in a physical change.
  2. 2. (d) chemical change — New substances form, so it is chemical.
  3. 3. (a) a physical change — Only the state changes; it is physical.
  4. 4. (b) moisture — Moisture (water) is needed for rusting.
  5. 5. It stays the same material; only size, shape or state may change.
  6. 6. Formation of a new substance, a gas, heat, light, or a colour change.
  7. 7. A physical change is one in which no new substance is formed and which is usually reversible; the material may change in size, shape or state but remains the same substance. Examples include melting ice, dissolving sugar in water and tearing paper. A chemical change produces one or more new substances and is usually difficult to reverse; examples include burning paper, cooking food, souring of milk and rusting of iron. Several signs point to a chemical change: a new substance with different properties, a change in colour, a gas being given off, heat or light produced or absorbed, or a solid settling out. Recognising these signs helps tell the two kinds of change apart.
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FAQ

Is this Class 7 Science worksheet on Changes Around Us Physical and Chemical free?
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Does the Changes Around Us Physical and Chemical worksheet come with answers?
Yes. Every worksheet has a separate answer key with the correct answers, short explanations and marks, so it is ready for marking.
Can I choose how many questions and which types?
Yes. Open the generator for this chapter and set how many MCQs, short, long and HOTS questions you want; totals and marks update live, and you can swap any single question.
Which board and class is this for?
This worksheet is aligned to CBSE Class 7 Science, chapter “Changes Around Us Physical and Chemical”.