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WorksheetsSCIENCE YEAR 4 REVISION
Total questions: 55
Worksheet time: 38mins
Name the organs involved during breathing
Nose, Heart and lungs
Nose , Trachea and Lungs
Lungs and Kidney
Name the organ
Lungs
Heart
Trachea
The picture shows human _____
Exhale
Inhale
The picture shows human _____
Inhale
Exhale
Choose the correct passage of air during inhale
Lungs - trachea - nose
Nose - Trachea - Lungs
Lungs - Nose - Trachea
Choose the correct passage air during exhale.
Lungs - Trachea - Nose
Nose - Trachea - Lungs
Lungs - Nose - Trachea
Inhaled air contains _______ compared to exhaled air.
more oxygen
more carbon dioxide
more water vapour
Choose the correct condition of the chest during inhalation
Chest moves upwards
Chest moves downwards
Chest moves upwards and downwards
The rate of breathing depends on the type of activity that is carried out.
True
False
Which activity is high rate of breathing?
Which activity is low rate of breathing?
Choose 3 situation which will give bad effect on human breathing.
When you group or organize categories, you are using the skill of ______________?
observing
interpreting data
predicting
classifying
_______________________.
The surface of a carpet is rough, meanwhile the surface of a tile is smooth.
Based on the above observation, which sense is used?
Smell
Hear
Touch
Taste
What inference can be made of this picture?
The plant wilt.
The plant die.
The plant was not watered.
The plant did not get enough food.
What is this science process skill?
Making inference
Classifying
Measuring and using numbers
Defining operationally
Predict what will happen to Plant A after 7 days.
Plant A will die
Plant A will grow taller
Plant A will bear fruit
Plant A will grow bigger
What action should be done by Sara?
Leave the broken apparatus on the table.
Report to the teacher immediately.
Throw all broken apparatus into the sink.
Which of the following cannot be done in the science room?
Cleaning the science room before leaving.
Ask for the teacher’s permission before entering the science room.
Eating and drinking in the science room.
What are the possible consequences to these students?
They'll get hurt
They will be more interested in learning
They will be praised by teachers
Please put (X) for students who following science room rules.
Which animal eats plant only?
Animals that eat plant only are known as...
carnivore
omnivore
herbivore
Animals that eat both plant and other animals are known as...
herbivore
carnivore
omnivore
Choose TWO animals that are omnivores
Cows, buffaloes and rabbits are...
herbivores
carnivores
omnivores
Chickens are ______________.
carnivores
omnivores
herbivores
Monkeys are carnivores
True
False
Which of the followings is the correct dentition for Herbivores?
Canine teeth is to ________________
Cut the food
Grind the food
Tear the food
Electrical energy is converted to ___________ energy in a hair dryer.
light
heat
wind
sound
A moving car has ______________ energy?
Potential
Kinetic
Heat
Nuclear
Which material is most likely to be the first to feel hot?
plastic
glass
metal
wood
Which orbit takes one year?
The Earth orbiting the Moon.
The Earth orbiting the Sun.
The Sun orbiting the Earth.
The Moon orbiting the Earth.
What happens to your heart rate when you exercise?
When people exercise their heart rates increase.
Their temperature decreases (gets lower)
Their muscles get longer.
Their bodies get stronger.
Animals without backbone is known as __________
Vertebrates
Invertebrates
The picture shows a cockroach is soaked in water.Why the cockroach is still alive after 2 hours?
It breathe using gills
it's breathing organ is located at the abdomen not at it's head
it has two breathing organ
Choose animals that breathe using gills
The following shows a picture of a hammer. The part marked X should be made of ______________. State a reason for your answer.
Steel. It is strong and can withstand heavy knocks.
Glass. It is waterproof.
Ceramic. It is a poor conductor of heat.
Aluminium. It is a good conductor of heat.
How do plants respond to gravity?
The roots and stem both
grow downward.
The roots and stem both
grow upward.
The roots grow downward and
the stem grows upward.
The roots grow upward and the
stem grows downward.
The picture shows a part of a bicylce which is a ............... .
whell and axle
lever
gear
pulley
What is the clarity of the shadow formed on a book?
Clear
Less clear
No shadow
What is the meaning of transparent?
Allows all the light to pass through
Allows some light to pass through
Does not allow any light to pass through
What will happen if one of the cardboard is shifted slightly to the right?
The torch can be seen
The torch cannot be seen
Inhaled air contains _______ compared to exhaled air.
more oxygen
more carbon dioxide
more water vapour
What technology does the deep sea fishermen use to detect object in water?
Ultrasound
Sonar
Echo
Radar
What is sound?
Sound is produced by vibrations
Sound is produced by songs
Sound is produced by humans
Sound is produced by machines
The picture shows a lamp giving off light. What form of energy does the lamp use to produce light?
Thermal
Mechanical
Electrical
Light
Revolution of Earth around the Sun in its orbit is in _______ direction.
Anticlockwise
Clockwise
What is the inference for the occurrence in the picture below?
The rotation of Earth on its axis.
The revolution of Moon around the Earth.
The revolution of Earth around the Sun.
Rotation of Moon on its axis.
A worker is facing difficulty to carry boxes out of the lorry. Which simple machine can help the worker?
Lever
Wedge
Inclined plane
Gear
