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🧾 CBSE · Class 8

Class 8 Science: Nature of Matter Elements Compounds and Mixtures Worksheet (with Answers)

A free, print-ready worksheet on Nature of Matter Elements Compounds and Mixtures for CBSE Class 8 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. A substance that cannot be broken into simpler substances chemically is a/an:
    • (a) element
    • (b) compound
    • (c) mixture
    • (d) solution
  2. 2. Water (H₂O) is an example of a/an:
    • (a) element
    • (b) compound
    • (c) metal
    • (d) mixture
  3. 3. Air is best described as a:
    • (a) compound
    • (b) single element
    • (c) pure substance
    • (d) mixture
  4. 4. Which is a metalloid?
    • (a) iron
    • (b) oxygen
    • (c) silicon
    • (d) gold
  5. 5. What is a pure substance?
  6. 6. Name the three classes of elements.
  7. 7. Compare compounds and mixtures under composition, properties and separation.
View answers
  1. 1. (a) element — Elements are the simplest pure substances.
  2. 2. (b) compound — Water is a compound of hydrogen and oxygen.
  3. 3. (d) mixture — Air is a homogeneous mixture of gases.
  4. 4. (c) silicon — Silicon has properties between metals and non-metals.
  5. 5. Matter made of only one kind of particle with a fixed composition, such as an element or a compound.
  6. 6. Metals, non-metals and metalloids.
  7. 7. Composition: a compound has a fixed ratio of elements, while a mixture has a variable proportion. Properties: a compound shows new properties different from its elements, while a mixture's components keep their own properties. Separation: a compound can be broken down only by chemical methods, whereas a mixture can be separated by physical methods like filtration or evaporation. Example: water is a compound; salt water is a mixture.
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FAQ

Is this Class 8 Science worksheet on Nature of Matter Elements Compounds and Mixtures free?
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Does the Nature of Matter Elements Compounds and Mixtures 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?
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Which board and class is this for?
This worksheet is aligned to CBSE Class 8 Science, chapter “Nature of Matter Elements Compounds and Mixtures”.