Question

Chapter 5 science NCERT
Q1: Name any two methods used for separation of substances
Q2: Which method is used to separate stones from grains?
Q3: Handpicking can be used only when quantity of impurities is NOT very large. (TRUE FALSE)
Q4: How does the farmer separate grains seeds from bundles of stalk?
Q5: Which method is used to separate heavier and lighter component of a mixture by wind or
blowing air?
Q6: Husk from wheat can be separated by
Q7: The method in which stalks are beaten to free the grain seeds is called
q8: Heavier and lighter components of a mixture can be separated by winnowing (TRUE/FALSE)
Q9: The method by which impurities and bran can be removed from the Your is
Q10: Sieving is used when the component of mixture have different sizes (TRUE/FALSE)
Q11: When heavier component of a mixture settles after water is added to it, it is
called
Q12: What is decantation?
Q13: The two liquids that do not mix with each other can be separated by
Q14: Which method of separating tea leaves from prepared tea is better: filtration or decantation?
Q15: What is evaporation?
Q16: The method of filtration is also used in the process of preparing cottage cheese in our
homes (TRUE/FALSE)
Q17: Salt comes from sea water (TRUE/FALSE)
Q18: How can sand be separated from water
Q19: Evaporation can be used to separate a solid dissolved in liquid (TRUE/FALSE)
Q20: How can we separate salt from water?
Q21: Water dissolves different amount of soluble substances in it. (TRUE/FALSE)विच मेथड विच मेथड इज यूज टू सेपरेट स्टार्ट फ्रॉम गेम ​

Answer 1

Answer:

1- hand-picking, winnowing, threshing, sieving, sedimentation, decantation, filtration and evaporation

2- hand picked

3- true

4- winnowing

Answer 2

Answer :- Handpicking,Winnowing, Thrashing,seiving,sedimentation, Sedimentation,DecantationIn,filtration and evaporation

2. Handpicked

3. True

4.Winnowing