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WorksheetsSCIENCE PSE 2011 A
Total questions: 50
Worksheet time: 3hrs 30mins
Which animal below lives part of its life cycle in water and on land?
Which process is being illustrated above?
A. photosynthesis
B. metamorphosis
C. pollination
D. germination
Which characteristic of living things is being demonstrated by the plant above?
A. growth
B. respiration
C. getting rid of waste
D. response to stimuli
The path illustrated by the movement of the butterfly shows the process of
A. germination.
B. fertilization.
C. pollination.
D. reproduction
The picture above shows some vertebrate animals. Which is represented more than once in the pictures?
A. amphibians
B. birds
C. reptiles
D. mammals
After drinking water from a certain river, several persons got sick and experience the following:
. severe, watery diarrhea
. nausea and vomiting
. muscle cramps
. dehydration
Which of these diseases could they have most likely been infected with as a result of drinking from the river?
A. cholera
B. chicken pox
C. AIDS
D. ring worms
All of the following are ways of practicing good health habits EXCEPT
A. washing hair once a week.
B. keeping nails short and clean.
C. brushing teeth once a week.
D. bathing at least once a day.
Which of the first aid procedures shown is mostly done to someone who was drowning?
Which of the following liquids needed to maintain good health is NOT represented inside the food pyramid?
A. milk
B. oils
C. water
D. juice
The foods shown above are rich in protein. In which groups on the pyramid are they mostly represented?
A. grains and milk
B. vegetables and grains
C. fruits, grains and oils
D. milk, meat and beans
HIV is a virus that
A. protects the immune system.
B. nurtures the immune system.
C. weakens the immune system.
D. strengthens the immune system.
The type of pollution illustrated above contributes to increased carbon dioxide in the air. This helps cause
A. global warming.
B. noise pollution.
C. conservation.
D. preservation.
Some factory waste in rivers, as shown, can cause increased growth in algae which removes oxygen from the water. This could lead to
A. decrease in the amount of water in the river.
B. increase in the animal and plant population.
C. destruction of animals in the river.
D. an increase in the flow of the river.
The table above shows the symptoms of some diseases that are caused by bacteria. Use it to answer the following question.
Which two diseases most affect the digestive system?
A. salmonella and pneumonia
B. salmonella and typhoid fever
C. tetanus and typhoid fever
D. tetanus and pneumonia
The changes listed above mostly happen in
A. adolescent females.
B. adolescent males.
C. both male and female teenagers.
D. both male and female adults.
Use the above chart to answer the following question.
According to the chart, which of the following statements is true?
A. Girls experience a longer childhood stage.
B. Girls start the stages of puberty and adolescence earlier than boys.
C. Boys start the stages of puberty and adolescence earlier than girls.
D. Boys experience a more rapid growth rate from puberty to adulthood.
The organs identified above are mostly associated with the
A. reproductive system.
B. digestive system.
C. Respiratory system.
D. skeletal system.
In which of the numbered parts of the plant does photosynthesis mostly occur?
A. 1
B. 2
C. 3
D. 4
Which ecosystem is mostly characterized above?
A. mangrove
B. rain forest
C. wet lands
D. fresh water
Which natural process is being illustrated in the drawings above?
A. ploughing
B. weathering
C. corrosion
D. transpiration
Use the food chain above to answer the following question.
Which organism below could be placed in the box to complete the food chain?
Use the food web above for the following questions.
Which of the organisms in the food web is the producer?
A. jaguar
B. snake
C. insect
D. grass
Where on the energy pyramid is the snake most likely be found?
A. 1
B. 2
C. 3
D. 4
Rocks are classified according to how they are formed. According to the illustration above, all the following influence rock formation EXCEPT
A. heat.
B. erosion.
C. weathering.
D. bleaching.
The following shows the result of an experiment done by Ms. Joan's class on four soil samples. Each soil sample and water was of the same amount.
Based on the amount of water that settled in the cylinders after ten minutes, which soil sample (W, X, Y, Z) was mostly sandy soil?
A. W
B. X
C. Y
D. Z
The diagram shows a girl using a ramp to enter the building. Which kind of simple machine is the girl using to enter the building?
A. pulley
B. lever
C. inclined plane
D. wheel and axle
The machine above is made up of
A. wedge and screw.
B. inclined plane and lever.
C. wedge and lever.
D. inclined plane and screw.
Where is effort applied in the diagram above?
A. 1
B. 2
C. 3
D. 4
The arm represents a lever. Which arrangement accurately labels this lever?
A. 1 - fulcrum, 2 - effort, 3 - load
B. 1 - load, 2 - fulcrum, 3 - effort
C. 1 - load, 2 - effort, 3 - fulcrum
D. 1 - effort, 2 - load, 3 - fulcrum
The illustration above shows
A. a Red Giant.
B. the Milky Way.
C. a Constellation.
D. the Solar System.
The cartoon shows how weight changes due to gravity.
If the cartoon were correct, which of the following is most likely a true statement?
A. Weight on the earth is less than weight on the moon.
B. Gravitational force on earth is less than on the moon.
C. Gravitational force on the moon is less than on the earth.
D. Weight on the moon is more than weight on the earth.
No matter where you stand on earth, you can hold a compass in your hand and it will point towards the >North Pole. It will help you to find directions.
What makes the compass work this way?
A. the force of the wind
B. the heat of the sun
C. earth's ocean tides
D. earth's magnetic field
The illustration shows the phases of the moon as it revolves the earth.
On which date is the moon not seen from the earth at night?
A. May 3
B. May 10
C. May 17
D. May 24
An eclipse occurs when the light from the sun is blocked. Which of these happens in the solar eclipse illustrated by the drawing above?
A. The shadow of the earth falls on the moon.
B. The shadow of the moon falls on the sun.
C. The shadow of the moon falls on the earth.
D. The shadow of the sun falls on the moon.
Which force acts on the ball as it falls downwards?
A. gravity
B. magnetism
C. inertia
D. upthrust
Which of Newton's laws of motion is demonstrated in this experiment?
A. An object at rest remains at rest unless it is moved by a force.
B. More force is needed to move a heavier object the same distance as a lighter one.
C. For every action there is an equal and opposite reaction.
D. What goes up always comes down.
The following illustrates how a motor vehicle reacts in two emergency situations when the driver applies brakes.
Which of these is most likely to cause the greater stopping distance?
A. Friction acting on speed pushes the vehicle.
B. Friction acting on speed pulls the vehicle.
C. Friction acting between the road and tires is increased.
D. Friction acting between the road and tires is reduced.
Which of the illustrations above shows an example of balanced forces at work?
The experiment above proves that light
A. can travel through any object.
B. can travel around an object.
C. travels in a straight line.
D. travels in a curved line.
A person who cannot see clearly from a far distance suffers nearsightedness.
Where in the eye does the image form for a person who is nearsighted?
A. in front of the cornea
on the cornea
on the retina
in front of the retina
Which of the following mostly shows light energy converted to chemical energy?
Traffic officers mostly use bright colored vests at night. This is most likely because bright colors
A. are not seen after dark.
B. reflect light well.
scatter the light.
are warmer after dark.
Which process allowed water droplets to form on the window surface shown on the picture above?
A. transpiration
B,. precipatation
C. evaporation
D. condensation
To separate the salt from the solution what needs to be applied at point A?
A. oxygen
B. ice
C. heat
D. fuel
Students in Mrs. Blair's class conducted the experiment shown in the picture above.
Which of these observations was most likely recorded for the oil?
A. It was visible as it mixed with the water but quickly dissolved and turned clear.
B. It sank into the water and then rose to the surface. When stirred, it broke apart and then formed a layer on the surface of the water. It did not dissolve.
C. It sank to the bottom and stayed there. After stirring, it dissolved and the solution turned clear.
D. It fizzed when it touched the water but quickly dissolved and turned into a cloudy solution. Stirring was needed.
A skater skates down a ramp. His path is shown in the diagram. In which position does the skater have the greatest stored energy?
A. 1
B. 2
C. 3
D. 4
What name is given to the structure marked 'X'?
A. Auricle
B. Cochlea
C. Ear drum
D. Semicircular canal
The experiment clearly demonstrates that
A. air is needed for the transmission of sound waves.
B. sound waves are louder when no air is present
C. less air causes louder vibrations.
D. sounds are heard loudly when air is removed.
Teacher Fred's class conducted this experiment. What did the students discover about sound?
A. All the bottles made the same pitch.
B. all the bottles made a high pitch.
C. Bottles with most water made the higher pitch.
D. Bottles with most water made lower pitch.
The diagram shows two sound waves, one corresponding to a high frequency and the other to a low frequency.
What is the difference between the high and low frequency sound waves?
A. Low frequency sound waves produce the same amount of vibrations over the same time.
B. High frequency sound waves produce less vibrations over the same time.
C. Low frequency sound waves produce more vibrations over the same time.
D. High frequency sound waves produce more vibrations over the same time.
