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Std. 8 Science Term Ii 2012 Question Paper
Std. 8 Science Term Ii 2012
Course:Primary Level
Institution: Mock question papers
Exam Year:2012
ALQUEDEX GROUP OF SCHOOLS
STD. 8 TERM-2 YEAR 2012
SCIENCE
Which of the following body fluids does NOT contain HIV virus?
A. saliva
B. sweat
C. semen
D. blood
All the following activities happen during inhalation. Which one does NOT?
A. lungs expand
B. diaphragm goes down
C. volume of chest increases
D. ribs move downwards
To demonstrate liquids exert pressure, standard four pupils were asked by their science teacher to bring all the following materials EXCEPT?
A. plasticine
B. nails
C. measuring cylinder
D. tins
Which one of the following explains how the instrument air thermometer works
A. air occupies space
B. air exerts pressure
C. air has weight
D. air expand on heating
Ice cubes were put on the sides of the Air tight bottle. What is likely to happen?
A. the level of water inside the tube will rise
B. the level of water inside the tubes will fall down
C. the water level in the trough will rise
D. there will be no change in the water level
A pupil saw a cloud with the following characteristics
i. thick, white and feathery
ii. flat at the bottom round at the top
The cloud was likely to be seen in
A. fine weather
B. rainy day
C. when there are drizzles and showers
D. none of the above
A certain weed has the following characteristics
i) it grows on damp places
ii) it is an edible weed
iii) its leaves have lobes
iv) it is very difficult to uproot. The weed described above is
A. oxalis
B. wandering jew
C. pigweed
D. Mexican marigold
Which one of the following machines will make work easier by increasing the effort distance?
A. lever
B. pulley
C. inclined plane
D. winch
Which of the following processes during giving birth is in the correct order from the first stage to the last stage
cutting of the umbilical cord
contraction of the uterine wall
rapture of the amniotic sac
giving birth
A. iv, ii, iii, i
B. ii, iii, iv, i
C. iv, i, ii, iii
D. iii, ii, iv, i
Which one of the following sexually transmitted infections can lead to infertility in women?
A. chancroid
B. gonorrhoea
C. syphilis
D. genital herpes
In the levers, the force to overcome is the
A. effort
B. work
C. energy
D. load
A certain disease has the following symptoms
fever
coughing out blood
pain in the chest
which one of the following ways CANNOT be used to control the disease described above?
A. proper sanitation
B. proper ventilation
C. vaccination
D. avoid overcrowded places
Which one of the following properties is NOT used in a periscope?
A. reflection of light
B. formation of images
C. bouncing back of light
D. formation of shadows
A standard seven pupil inflated two balloons, she then rubbed on her dress and the other on her hair. What observation did she make when she brought the two balloons close to each other?
A. they attracted each other
B. they repelled each other
C. nothing happened
D. they bust
Which one of the following activities will not increase the rate at which salt disappears in a cup of water?
A. increasing amount of water
B. crushing the salt
C. increasing temperature of water
D. adding more salt
The composition of air which occupies 0.97% is used in_
A. making fire extinguishers
B. electric bulbs
C. making food in green plants
D. making proteins in plants
Which one of the following forms of energy require no medium to travel?
A. sound and electricity
B. heat and sound
C. heat and light
D. light and electricity
Which one of the following type of levers has the load between fulcrum and effort?
A. wheelbarrow
B. lead opener
C. human arm
D. fishing rod
Which one the following is an adaptation of hydrophytes?
A. sunken stomata
B. thick waxy cuticle
C. thin waxy cuticle
D. deeply rooted
The following are signs of ill-health in livestock. Which one of them can be observed immediately a dairy cow becomes sick?
A. blood in the stool
B. loss of weight
C. reduction in yield
D. stunted growth
Which one of the following is the best way of reducing the spread of HIV & AIDS in newly married couples?
A. abstaining
B. vaccination
C. using ARVS
D. being faithful to each other
The following experiment was done by class of pupils in Mwingi primary school. Class W- diesel and cooking oil
Class X- spirit and kerosene
Class Y- petrol and lemon juice
Class Z- water and petrol
Which class contained liquids that cannot be separated by decanting?
A. W
B. Z
C. X
D Y
Which of the following properties of a gas changes when it is heated and then cooled?
A. volume
B. mass
C. weight
D colour
The best way of controlling weeds on large farms is?
A. burning
B. using herbicides
C. uprooting
D digging them out
Which one of the following animals gives us mohair?
A. sheep
B. horse
C. poultry
D goat
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