WorksheetsCHMS_Y4_SCIENCE_REVISION (CHAPTER 3-5)
Total questions: 20
Worksheet time: 12mins
Which of the following is not the use of carbon dioxide?
It is used in fire extinguisher.
It is needed by plants to make food.
It is used for welding.
It is used to make fizzy drink.
Which of the following animal uses lungs to breathe?
Grouper
Shark
Porpoise
Flatfish
All living things and non-living things carry out respiration.
True
False
Tiny holes that can be found mostly on the underside of the leaves and green stem of a plant.
Gills
Lungs
Stomata
Blowhole
(a) is a gas that is needed in respiration.
It carries blood away from the heart.
Vein
Capillary
Artery
Platelet
What are the blood components shown in the picture?
Red blood cells
Platelets
White blood cells
Plasma
Which of the following statement is false about light?
Light is a form of energy that enables us to see.
A shadow is formed when light is blocked.
Light has mass and occupies space.
Which of the following object is a non-light source?
Which of the following time will form the shortest shadow?
8 a.m.
12.15p.m.
4 p.m.
6 p.m.
Which of the following statement is true about heart?
Left-sided heart is rich in carbon dioxide.
Right-sided heart is rich in oxygen.
When the muscles of the heart relax, blood will be pumped to all parts of the body.
Muscles of the heart are called cardiac muscles.
Which of the following objects are translucent materials?
Tracing paper
Clear glass
Cardboard
Rice paper
Which of the following statement about air is INCORRECT?
Nitrogen is the most abundant gas.
Oxygen consists of 78% in the air.
Amount of water vapour varies from time to time and from place to place.
Air is made up of a mixture of gases.
Carbon dioxide and water vapour are given off during respiration.
True
False
(a) (gas) changes the limewater into chalky colour.
The _________________ absorb water and minerals from the soil.
xylems
phloems
roots
leaves
Energy is needed to carry out life processes such as respiration, digestion and reproduction.
True
False
Which of the following statement is true about reflection of light?
Kettle and mirror cannot reflect light very well.
The Moon gives out its own light.
The Earth reflects light from the Sun.
Choose TWO correct statements about shadow.
Shadow is formed when light is reflected by an object.
The shadows cast are different in shape and size depending on the position of the Sun.
An object can cast shadows of different shapes and sizes.
Shadow can be formed when light does not travel in a straight line.
Which of the following material is carried by blood?
Oxygen
Digested food
waste materials
All of the above
