Class 8 PT I Question Paper 2024-25 Science

PERIODIC TEST
QUESTION PAPER
Question Paper for CBSE Board, KV Schools,
State Board following NCERT Syllabus

PT 1 | PT 2

Question Paper based on NCERT Syllabus
CBSE Board Question Paper / KV Schools Question Paper

Periodic Test – 1 (2024-25)
Class – VIII
Time – 90 minutes Subject – Science M.M. – 40
Multiple Choice Questions ( 1 × 7 = 7 Marks)
Q.1) The first step before growing crop is -
(a) Adding manure and fertilisers (b) Preparation of soil (c) Sowing (d) Harvesting
Q.2) In the following which is a Rabi Crop -
(a) Paddy (b) Soyabean (c) Groundnut (d) Wheat
Q.3) Yeast is used in the production of -

(a) Sugar (b) Alcohol (c) Oxygen (d) Hydrochloric
acid
Q.4) The most common carrier of communicable disease is -
(a) Ant (b) Spider (c) Housefly (d) Butterfly
Q.5) The process of conversion of sugar into alcohol is called -
(a) Nitrogen fixation (b) Moulding (c) Fermentation (d) Pasteurisation
Q.6) The petroleum product used for surfacing of roads is -
(a) Bitumen (b) Kerosene (c) Petrol (d) Diesel
Q.7) Least polluting fuel for vehicle is -
(a) Petrol (b) Diesel (c) Kerosene (d) CNG

Q.8) Match The Column ( 1 × 5 = 5 Marks )
Column A Column B
(i) Organic manure (a) Baking of bread
(ii) Sources of irrigation (b) Causing cholera
(iii) Lactobacillus (c) Animal excreta, cow dung and plant waste
(iv) Yeast (d) Tubewells, ponds, rivers, lakes, canals
(v) Bacteria (e) Setting of curd

Q.9) Tick True/False against the following statements. ( 1 × 3 = 3 Marks)
(i) Coke is almost pure form of carbon.
(ii) Kerosene is not a fossil fuel.
(iii) CNG is more polluting fuel than petrol.

Q.10) Fill in the blanks. ( 1 × 3 = 3 Marks)
(i) Process of separation of different constituents from petroleum is called ………………………. .
(ii) Microorganisms can be seen with the help of a ………………………….. .
(iii) Damaged seeds would ……………………….. on the top of water.

One Word Answer Questions ( 1 × 2 = 2 Marks )
Q.11) A machine used for cutting the matured crop.
Q.12) Name the microorganism which can fix atmospheric nitrogen in the soil.

Very Short Answer Questions ( 2 × 2 = 4 Marks )
Q.13) What are the major groups of microorganisms?
Q.14) Describe the characteristics and uses of coke.

Short Answer Questions ( 3 × 2 = 6 Marks)
Q.15) Explain how fertilisers are different from manure.
Q.16) Describe how coal is formed from dead vegetation.

Long Answer Questions ( 5 × 2 = 10 Marks)
Q.17) What is irrigation? Describe two methods of irrigation which conserve water.
Q.18) What are antibiotics? What precautions must be taken while taking antibiotics?

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