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END OF FIRST TERM SCIENCE EXAMINATION (C.O.Y 2)
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END OF FIRST TERM SCIENCE EXAMINATION (C.O.Y 2)
END OF FIRST TERM SCIENCE EXAMINATION (C.O.Y 2)
December 2, 2020
Posted by:
Charles Yeboah
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Welcome to your END OF FIRST TERM SCIENCE EXAMINATION (C.O.Y 2)
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Email
Class
1. Steel is an alloy of iron and
a. Aluminium
b. Carbon
c. Silicon
2. An atom that has lost one or more electron(s) is called________.
a. an ion
b. a molecule
c. a proton
3. In electronic circuits, LEDs are used to indicate the absence or presence of
a. electric current
b. Voltage source
c. p-n junction
4. Which of the following statements about the scientific method is/are correct? It provides I. Logical procedure for arriving at knowledge II. Knowledge that can never be changed III. Knowledge that is ever changing
a. I only
b. I and III only
c. I, II and III
5. Which of the following substances is a compound?
a. Water
b. Hydrogen
c. Nitrogen
6. Which of the following sources is/are renewable? I. Solar II. Crude oil III. Wind
a. I and III only
b. I only
c. I,II and III
7. Chlorine gas is an example of ________.
a. molecule
b. an element
c. a compound
8. Which of the following life processes is not performed by all living things?
a. excretion
b. photosynthesis
c. respiration
9. Which of the following statements about a force are correct? It I. Is measured in Newtons II. Is measured in Newtons-metre III. Can start a motion IV. Can change the direction of a moving body
a. I and II only
b. I, II, III, and IV
c. I, III, and IV only
10. Kerosine is able to reach the other end of a wick by
a. Diffusion
b. Suction pressure
c. Capillary action
11. A balanced diet is one which is made up of_________.
a. Right portions of protein, carbohydrates, and oils.
b. Equal amounts of proteins carbohydrates and oils
c. Enough water and iodated salt.
12. Which of the following is equal to 1Kg?
a. 10000g
b. 1000g
c. 100000g
13. A piece of stone sinks in water because________.
a. Its density is greater than that of the water
b. Its density is equal to the water
c. It is able to displace its own weight of water
14. Which of the following vegetable crops is cultivated for its leaves?
a. carrot
b. lettuce
c. okro
15. There are two major branches of science. They are:
a. Chemical science and Pure science
b. Applied science and Pure science
c. Applied science and natural science
16. The main source of water in the soil is?
a. river bodies
b. rain
c. dew
17. A person suffering from symptoms of diarrhoea and vomiting may be suffering from______.
a. cholera
b. influenza
c. dysentery
18. The sub-atomic particle with zero charge in the nucleus of an atom is called________.
a. electron
b. neutron
c. proton
19. The type of image formed in a plane mirror is always________.
a. virtual
b. diminished
c. enlarged
20. Non-reactive metals are preferred in making ornaments and jewellery because they________.
a. are attractive
b. do not react with atmospheric oxygen
c. do not retain their lustre
21. One benefit on technology to industrialization is_________.
a. increase in cost of production of goods
b. reduction in skilful labour
c. provision of machinery
22. External respiration in living organisms is also known as_________.
a. gaseous respiration
b. aerobic respiration
anaerobic respiration
23. One way of ensuring that organisms are not endangered is to_________.
a. protect their habitat
b. pollute their habitat
c. allow their predators to outnumber them
24. The part of the flower that contains nectar is called_______.
a. sepal
b. petal
c. anther
25. The presence of chlorophyll in green plants is a necessary condition for photosynthesis because it_______.
a. produces carbon dioxide
b. absorbs solar energy
c. produces water vapour
26. Solid non-metals normally break into pieces when hammered because they are
a. lustrous
b. ductile
c. brittle
27. Young rabbits are called________.
a. fingerlings
b. bunnies
c. cubs
28. Which of the following food items produces amino acids as the end-product of digestion?
a. fish
b. cabbage
c. margarine
29. Which of the following heavenly bodies is a star?
a. Sun
b. Jupiter
c. Moon
30. Brass is an alloy of________.
a. iron and carbon
b. zinc and copper
c. copper and tin
31. An example of a fundamental quantity is__________.
a. mass
b. density
c. velocity
SECTION B (All Questions Carry Equal Marks In This Section)(40 marks)
A. i. What is density of a body? ii. A body of mass 50Kg has a density of 2Kg/m3. Calculate the volume of the body.
B. Write the systematic name for each of the following compounds. i. CaO ii. CaCl2 iii. MgO iv. H2O
C. i. Differentiate between rusting and corrosion with regards to metal. ii. Use chemical symbols to represent the following elements: calcium, Sulphur, argon, neon, silicon, oxygen, fluorine, magnesium, potassium and phosphorus.
D. i. Describe how the ion of an atom can be formed. ii. What is meant by the term air pollution?
E. i. For each of the activities listed below, state whether the activity involves physical change or chemical change. i. sugar is dissolved in water ii. burning of candle iii. fermentation of cassava dough. iv. grinding of chalk v. rusting of iron
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