WORKSHEET
SEPARATION OF
SUBSTANCES.
II) Name the following :
1. The process by which butter separated from curd.
2. Chemicals used for loading or increasing
sedimentation.
3. The
method for separating a soluble solid from its solution.
4.The process by which pure salt separated from
impure salt.
5. Diseases caused by bacteria ion water.
6. Method for separating paneer from curdled milk.
7. The gas used for killing micro organisms in
water.
8. The method for separating two immiscible liquids.
9. You are given a mixture of sand, salt and iron
filling. How will you separate all the components?
II. FILL IN THE BLANKS.
1: Sand
can be separated from water by the process of _______________________________.
2: Common salt is obtained from sea water by the process of
__________________________.
3: Husk is separated from rice by the process of
_____________________________________.
4: Stones can be separated from rice by the process of
________________________________.
5: Grains can be separated from stalks by
__________________________________________.
6: To separate tea leaves from tea we use a
_________________________________________.
III. Answer in one word
1: Name the method used to separate pebbles or stones from
sand. ________________.
2: Name the method used to separate oil from
water. ______________________.
IV. Define the following
1:
Threshing 2:
Handpicking 3: Filtration
4: Saturated solute
V. Distinguish between
1: Evaporation and condensation. 2: Sedimentation
and decantation.
