Separation of Substances

Separation of substances Worksheet-1

Fill in the blanks:

1. When two or more pure substances are mixed together in such a way that each component retains its properties is called a ______.
2. ______ method of separation is based on the property that grains are heavier than husk and hay.
3. A solution in which no more solute can be dissolved at a fixed temperature is called a _____.
4. Formation of dew in nature is due to ______ of moisture in the air.
5. In lemon water, lemon juice is a ______. (solute/solvent)

Multiple-Choice Question:

Separation of substances Worksheet-2

Multiple-Choice Question:

13. A small boy mischievously mixed small pebbles into a bag of pulses. What method will you employ to separate the mixture?

(A) Sieving           (B) Winnowing    (C) Handpicking  (D) Filtration

14. Bronze is an alloy of:

(A) Copper and zinc                         (B) Copper and tin

(C) Copper and iron                         (D) Copper and nickel

Separation of substances Worksheet-3

Fill in The Blanks:

1. The process of deliberately mixing food materials with cheap, unwanted harmful things is called ________.
2. ___ method is used to separate insoluble solids from liquids.
3. ________ process is used to separate pebbles and stones from sand at construction sites.
4. In a solution of turmeric in water,_____ is solute.
5. The ability of a substance to get dissolved in a given liquid is known as its ______.

Multiple-Choice Question: