SECTION - A
Name the technique to separate
Salt from Sea – water
Butter from curd
What do you mean by free fall?
Mention any 2 advantages of using Italian bee variety in honey production.
Identify soluble and solvent in the following solutions:
Tincture of iodine
State the principle of each if the following methods of separation of mixtures.  (i)
Separation using separating funnel.
Differentiate between Mass and Weight [Four points].
Show that weight of an object on moon is equal to of the weight if the object on the earth. Given Mass of Earth , Mass of moon , radius of earth , radius of moon =
(a) Will a sheet of paper fall slower than one that is crumpled into a ball in vacuum? Explain. 
Show mathematically that acceleration experienced by an object is independent of its mass.
 (c) Show that value of g = 9.8 m/s2
Describe an activity to demonstrate endosmosis and exomosis. Draw a diagram also.
Give the chemical composition and functions of plasma membrane and cell wall.
[3+2] Differentiate between the two
What is meant by membrane biogenesis?
Which cell organelle is concerned with membrane biogenesis?
A student was asked to mix the while of an egg with water and stir well. The student observed that
Transparent solution is formed
A translucent mixture is formed
Egg while settles down at the bottom
Egg white floats on the surface of the water
A student by mistake mixed iron filings and sulhpur powder. He wanted to separate them each other. The method you, would advice him to use is to...
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