Cadet College Wana Jewel of South Waziristan Agency General Science Past Paper

Cadet College Wana Jewel of South Waziristan Agency General Science Past Paper

Cadet College Wana
Jewel of South Waziristan Agency     Time Allowed: 1 Hr
Paper General Science              Total Marks: 75
Class 8th
Note: This paper has two sections A and B. Attempt the paper according to the Instructions.
Time: 15Min                         SECTION A                                                 Marks: 11

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Q: 1 Insert the correct option A, B, C or D in the box opposite to each statement.
i.     Rod shaped bacteria are called             .

(A) Cocci      (B) Bacilli    (C) Spirilla    (D) Vibrios
ii.    What is the nature of virus           ?

(A) living   (B) non living (C) both a & b (D) none of them
iii.    Star-Fish is the member of which phylum        ?
(A) Protozoa  (B) Porifera (C) Echinodermeta (D) Annelida.
iv.    Over- farming leads to          .

(A) Fertility (B) numeral Deficiency (C) both a & b (D) None of them.
v.    The chemical formula of Nitric acid is         .
(A)  Hcl     (B) NHo3           (C) H2So4       (D) HI
vi.    The bond formed between NaCl is         .

(A) Ionic bond (B) Covalent bond (C) Co-ordinate Covalent bond (D) Hydrogen bond.
vii.    Naturally diamond is a skeleton , composed of         .

(A)  Carbon      (B) Hydrogen    (C) Oxygen  (D) Nitrogen.
viii.    Hydraulic machine runs by means of         .

(A)  Salt      (B) Acid    (C) H2o    (D) Base.
ix.    What happens to the K.E of the liquid Molecules when it is heated         ?

(A)  Increases  (B) Decreases (C) Remain Constant (D) none of them.
x.    In solids the distances between the molecules are         .

(A)  Small (B) Large (C) Both a & b (D) None of them.
xi.    Rocks are the big source of         .
(A) Salts   (B) Minerals (C) Coals (D) All of them.

Time: 45Min                                   SECTION B                                             Marks: 64
Note: Write short answers of any Eight of the following. Each question carries 8marks.
Q2:      Write a note on beneficial effects of bacteria?
Q3:          Differentiate between Plant and Animal cells?
Q4:    Five General characters of Phylum Protozoa with examples?
Q5:     Write a short note on chemical formula with example?
Q6:      Write a short note in ionic bond with examples?
Q7:     Differentiate between an acid and base?
Q8:      Law of Conservation of mass?
Q9:      What is Hydraulic machine?
Q10:     Write a short note on thermal expansion of gases?
Q11:     What is lense?