Time: 2 Hours 30 Minutes
MM: 60
General Instructions:
(i)
All questions are compulsory.
(ii)
Read the questions carefully.
(iii)
Give example(s) and draw diagram(s) in every question.
(iv)
Use blue gel pen for writing answers and pencil for diagrams/labeling.
(v)
Handwriting should be neat and legible.
(vi)
Q1 to Q10 are three marks questions. These are to be answered in about 50 words each.
(vii)
Q11 to Q16 are five marks questions. These are to be answered in about 70 words each.
(viii)
There is an internal choice in three marks question and five marks questions.
Short Answer Type Questions -
1.
If you cannot find a strainer or a clean piece of cloth while making a tea in which you added tea leaves.
What method would you likely to apply for a cup of tea without leaves? Explain that method.
2.
Describe in detail the two main processes of making fabric from yarn.
3.
Explain sieving. Is it a good practice to sieve flour before consuming it? Why?
4.
A potter working on his wheel shaped a lump of clay into a pot. He then baked the pot in an oven Do these
two acts lead to the same kind of changes or different? Give your opinion and justify your answer.
5.
List three ill-effects of plastics.
OR
Write three differences between biodegradable and non-biodegradable waste.
6.
What happens when –
a)
Cooking medium is made to flow down a drain.
b)
Insecticides, motor oil, paints are poured down the drain.
c)
Tea leaves, cotton swabs and old soft toys are thrown into the drain.
7.
How is jute extracted from jute plant?
8.
What will happen if we pull the yarn from torn pair of socks? State the reason.
9.
How herbivores, carnivores and omnivores are different from each other? Enlist any three points with
examples?
10.
Write the difference between the following methods:-
a)
Centrifugation and Churning.
b)
Loading and Filtration.
Long Answer Type Questions -
11.
Explain the following in detail with example and diagrams :-
a) Vermicomposting
b) Magnetic force
c) Landfills
d) Reversible change
e) Chemical change
OR
Do you think it is better to use compost instead of chemical fertilizers? Explain in detail why?
12.
Name the method that is used to separate following mixtures:-
a) Cream from milk
b) Chalk and water
c) Mud and water
d) Saw dust and water
e) Stone from rice
13.
Explain all the processes with diagram showing how cotton is extracted from the cotton plant.
14.
Name two foods each rich in :-
a) Fats
b) Starch
c) Dietary Fibre
d) Protein
e) Calcium
15.
Draw a well-labeled diagram of structure of plant and explain all its parts with its functions.
16.
Enlist the five properties of magnet in detail with diagrams.
Answers
Answered by
1
Answer:
ds
Explanation:
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