Separation of substances Worksheet-9

Separation of substances Worksheet-9


Multiple-Choice Question:

  1. Which method is used to separate wheat bran from flour?

(A) Winnowing   (B) Hand-picking (C) Sieving


  1. By which process we need to separate the grains from the stalks?

(A) Threshing      (B) Winnowing    (C) Sieving


  1. Which of the following can be easily separated from bigger particles through sieve method?

(A) Flour              (B) Wheat bran   (C) Husk


  1. Name the machine by which we can separate cotton fibres from its seeds?

(A) Cotton role    (B) Cotton ring    (C) Cotton gin


  1. Which process involves the beating of stalks?

(A) Threshing      (B) Winnowing    (C) Sieving


  1. We use _____ to separate tea leaves from tea.

(A) Strainer          (B) Grinder          (C) Mesher


  1. Which process loosens and separates the husk from the grain?

(A) Threshing      (B) Winnowing    (C) Sieving


  1. Which process is done by crushing the harvested stalks using bullocks?

(A) Threshing      (B) Winnowing    (C) Sieving


  1. Combine harvester is a machine used in:

(A) Threshing process                     (B) Winnowing process

(C) Sieving process


  1. The seed coverings and tiny pieces of leaves or stem are collectively called as:

(A) Wastes           (B) Chaff              (C) Remains


Answer Key:

  1. (C)
  2. (A)
  3. (A)
  4. (C)
  5. (A)
  6. (A)
  7. (A)
  8. (A)
  9. (A)
  10. (B)