Question

AMRIT INDO CANADIAN ACADEMY CLASS – VI SCIENCE ASSIGNMENT (JUNE, 2020) M.M-50

SECTION A- KNOWLEDGE (M.M - 16) Q1. SELECT THE CORRECT OPTION GIVING THE APPROPRIATE REASON: (4M)

1. Firemen uniform is coated with a plastic that is fire resistant. Identify the plastic from the given options. (a) Teflon (b) melamine (c) PET (d) Polyester

2. In today’s world, where water is a scarce resource, which among the following irrigation methods is most

feasible and sustainable?

(a) Sprinkler system (b) Drip system (c) Tube well (d) Chain pump

3. Carrier of malaria-causing protozoan is

(a) female Anopheles mosquito (b) cockroach (c) housefly (d) butterfly

4. In order to take precautionary steps to control dengue, we must take measures to stop the breeding of:

(A) Aedes mosquito (B) Fleas (C) Fire ants (D) Anopheles mosquito

Q2. (a) Explain how fertilizers are different from manure. (3M)

(b) What would you choose between manure and fertilizer to provide nourishment in your field and why? (2M)

Q3. Why do plant cells have an additional layer surrounding the cell membrane? What is this layer known as? (2M)

Q4. (a) Name two diseases that are caused by virus. (b) Write one important characteristic of virus. (3M)

Q5. PVC (polyvinyl chloride) is a thermoplastic and is used for making toys, chappals, etc. Bakelite is a thermosetting plastic

and is used for making electrical switches, handles of various utensils, etc. Write the major difference between these two

types of plastics? (2M)

SECTION-B UNDERSTANDING (M.M. 10) Q6. SELECT THE CORRECT OPTION GIVING THE REASON: (3M)

1. If your father has brown eyes, you may also have brown eyes. If your mother has curly hair, you might also end up having

curly hair. This transfer of characteristics is due to the transfer of ______. A. Mitochondria B. Lysosomes C. Chloroplasts D. chromosomes

2. Which of the following is used to preserve food grains at home?

A. Spinach leaves B. Curry leaves C. Neem leaves D. Tulsi leaves3. Which of the following fibres is used for making parachutes?

A. Plastic B. Terelyne C. Nylon D. Steel

Q7. Why paddy cannot be grown in the winter season? (2M)

Q8. Explain how soil gets affected by the continuous plantation of crops in a field. (2M)

Q9. What are antibiotics? What precautions must be taken while taking antibiotics? (3M)

SECTION-C APPLIED CONCEPT (M.M-10)

Q10. SELECT THE CORRECT OPTION GIVING THE APPROPRIATE REASON: (3M)

1. The most suitable material for the preparation of handles of cooking utensils is

(a) Polythene (b) PVC (c) Nylon (d) Bakelite

2. Paheli accidentally placed her hand over a flame and immediately pulled it back. She felt the sensation of heat and reacted

due to the action of

(a) blood cells (b) skin surface (c) nerve cells (d) nucleus of cells

3. The bread oridli dough rises because of

(a) heat (b) grinding (c) growth of yeast cells (d) kneading

Q 11. Beera, wants to practice crop rotation in his field. Suggest a Rabi crop and a Kharif crop which will replenish his field

with nitrogen. Which crop replenishes nitrogen and why? (3M)

Q 12. Give reasons for the following (4M)

(a) Fresh milk is boiled before consumption while processed milk stored in packets can be consumed without boiling. (b) Raw vegetables and fruits are kept in refrigerators whereas jams and pickles can be kept outside. SECTION-D ANALYSE AND EVALUATE (M.M.-8)

Q13. Paddy is a major cereal crop in our country. (4M)

(a) In which season is paddy cultivated?

(b) Discuss the method of sowing. (c) What measures must be taken to prevent spoilage and insect attack of harvested grains?

Q14. Observe the Fig.2.3 and answer the following question: (4M)
(a) Name the microorganism. (b) Name the food item on which the organism grows. (c) Does it grow well in dry or in moist conditions?

(d) Is it safe to eat infected bread?

SECTION-E CREATE (M.M-6) Q15. Despite favorable climatic conditions, a farmer’s crop failed to give good yield. Give the possible reasons for this. (2M)Q16. Despite being very useful it is advised to restrict the use of plastic. Why is it so? Can you suggest some methods to

limit its consumption? (2M)

Q17. Do you reckon that this recent pandemic could reshape education? Justify your response. (2M)​

Answer 1

Answer:

ans 1 b melamine

ANS 1 B Melamine