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Class 6 Science — Materials around us

Group materials by whether you can see through them, whether they dissolve in water, and whether they shine — and say what makes something matter.

Name: ________________________

  1. 1.Any substance used to make an object is called a ___. Which word fills the gap?

  2. 2.Sort each material by how much you can see through it.

    Groups: Transparent · Translucent · Opaque

    • Air
    • Butter paper
    • Window glass
    • Cardboard
    • Frosted glass
    • Wood

  3. 3.Which units does the chapter give for measuring mass?

    • a) Gram and kilogram
    • b) Litre and millilitre
    • c) Metre and centimetre
    • d) Second and minute

  4. 4.Anything that occupies space and has mass is given one general name. What is that name?

  5. 5.Tap the pane you could read a word through clearly.

    Write the number of the part.

    123

  6. 6.A plastic spoon has been coated so that it gleams like silver. Is it a metal?

    • a) Yes, because lustrous materials are metals
    • b) Not necessarily — a surface can be made shiny by polishing or coating
    • c) No material other than a metal can ever shine
    • d) Yes, because plastic becomes metal when it is coated

  7. 7.Match each word to what it describes.

    • Transparent
    • Translucent
    • Opaque
    • you cannot see through it
    • you can see through it clearly
    • you can see through it, but not clearly

  8. 8.A freshly cut piece of iron shines, but an older piece looks dull. What does the chapter give as the reason?

    • a) Iron is non-lustrous once it has been cut
    • b) The older piece was not iron to begin with
    • c) The older piece has stopped being a metal
    • d) Air and moisture have acted on the older surface

Answer key — Class 6 Science — Materials around us

  1. 1. material
  2. 2. Window glass → Transparent; Air → Transparent; Frosted glass → Translucent; Butter paper → Translucent; Wood → Opaque; Cardboard → Opaque
  3. 3. a) Gram and kilogram
  4. 4. matter
  5. 5. 1 — Window glass
  6. 6. b) Not necessarily — a surface can be made shiny by polishing or coating
  7. 7. Transparent → you can see through it clearly; Translucent → you can see through it, but not clearly; Opaque → you cannot see through it
  8. 8. d) Air and moisture have acted on the older surface