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WorksheetsScience Form 3
Total questions: 70
Worksheet time: 35mins
Which of the following is a voluntary action?
Antara berikut, yang manakah merupakan tindakan terkawal?
Peristalsis
Talking
Sweating
Heartbeat
Which of the following practices can improve the quality of air?
Antara pernyataan yang berikut, manakah boleh meningkatkan kualiti udara?
Smoke in open area.
Merokok di kawasan terdedah.
Use lead-free fuel in vehicles.
Menggunakan minyak tanpa plumbum dalam kereta.
Burn the rubbish that cannot be recycled or reused.
Membakar sampah yang tidak boleh di sekitar semula atau diguna semula.
Use motor vehicle to reach a destination within walking distance.
Menggunakan kenderaan bermotor untuk sampai ke destinasi yang jaraknya pendek.
What are the factors that affect the sensitivity of the skin?
Apakah faktor-faktor yang memberi kesan kepada kepekaan kulit?
I The number of sensory receptors present
Bilangan reseptor deria yang hadir
II The thickness of epidermis layer
Ketebalan lapisan epidermis
III The thickness of dermis layer
Ketebalan lapisan dermis
I and II only
I and III only
II and III only
I, II and III
What sensory organ is used by blind people in Braille reading?
Apakah organ deria yang digunakan oleh orang cacat penglihatan dalam membaca Braille?
Skin
Nose
Eye
Tongue
Diagram 1 shows the cross section of a human eye.
Name the parts X
Pupil
Cornea
Iris
Optic nerve
Diagram 1 shows the cross section of a human eye.
Name the parts Y
Pupil
Cornea
Iris
Optic nerve
Diagram 1 shows the cross section of a human eye.
Name the parts Z
Iris
Optic nerve
Cornea
Pupil
Diagram 2 shows the cross section of the human nose.
What is the function of X?
Moistens the nasal cavity
Melembapkan rongga nasal
Interprets the impulses as a smell
Menterjemahkan impuls sebagai satu bau
Secretes mucus to dissolve the chemicals
Mengeluarkan mukus untuk melarutkkan kimia
Detects and sends the impulses to the brain
Mengesan dan menghantar impuls kepada otak
Diagram 2 shows a type of vision of some animals.
Which of the following animals has this type of vision?
Pigeon
Goat
Fish
Tiger
Which of the following plants shows the same response?
Hibiscus
Red bean
Sunflower
Venus flytrap
What does xylem transport?
Water and minerals
Water only
Sugar
Food
Which of the following carries blood away from heart?
Vein
Artery
Capillary
Valve
What is the function of the blood vessel labelled D?
To transport blood from the heart to the lungs
To transport blood from the heart to the rest of the body.
To transport blood from the rest of the body to the heart.
To transport blood from the lungs to the heart.
Figure below shows one type of blood cell. What is the name of the blood cells and its function?
Red blood cell , Transport food
White blood cell , Transport food
Red blood cell, Transport oxygen
White blood cell, Transport oxygen
Which shows the correct pathway of oxygenated blood entering and leaving the heart?
Pulmonary vein > left atrium > left ventricle > aorta
Pulmonary vein > left atrium > right ventricle > aorta
Vena cava > right atrium > right ventricle > pulmonary artery
Vena cava > right atrium > left ventricle > pulmonary artery
Magnesium is more reactive towards oxygen compared to
Calcium
Zinc
Sodium
Potassium
In a less vigorous reaction between a less reactive metal such as iron and oxygen, only a glow or slow change in colour is observed
True
False
What are the two non-metal elements that are included in the reactivity series of metals?
Calcium
Carbon
Sodium
Hydrogen
What will happened when lead oxide react with hydrogen?
Lead oxide burns brightly
Yellow powder turns shiny grey
Lead is produced
All of the above
Based on the diagram, what is the function of anhydrous calcium chloride in the experiment?
To absorb water vapour so that dry hydrogen will be produced
To supply hydrogen gas
To separate the metals
To release heat for combustion
Based on the following diagram, what is the function of potassium manganate (VII) crystals in this experiment?
To supply oxygen
To avoid the metals to mix with each other
To release heat
To give out water vapour
Write the word equation between metal and oxygen.
Metal + Oxygen Metal oxide
Metal + Oxygen undefined Metal oxygen
Metal + Oxygen = Metal oxide
Metal + Oxygen = Metal oxygen
Write the word equation between metal oxide and hydrogen.
Metal oxide + Hydrogen Metal + Water
Metal oxide + Hydrogen undefined Metal hydroxide
Metal oxide + HydrogenundefinedMetal + Water + Carbon dioxide
Metal oxide + HydrogenundefinedMetal oxide + Water
Which reaction explains about exothermic reaction?
Heat is absorbed from the surroundings
Surrounding temperature increases
Heat energy is changed to chemical energy
Thermometer reading decreases
Which statement is correct about endothermic reaction?
Heat is released
Thermometer reading increases
Surrounding temperature increases
Breaks the chemical bonds of the reactant
The diagram shows the bread dough is put into an oven to be baked.
Which statements are correct about the baking process?
Choose more than one answer.
Endothermic reaction occurs
The heat from the oven is absorbed by the dough
Thermal equilibrium achieved when the bread is cooked
The formation of new substance did not occur
Endothermic is a reaction that absorbs heat.
TRUE
FALSE
The diagram shows a chemical reaction.
The initial temperature of distilled water is 27⁰C.
What temperature may be recorded by the thermometer in the sodium hydroxide solution?
35⁰C
20⁰C
18⁰C
10⁰C
Which of the following is an endothermic reaction?
Photosynthesis
Respiration
Burning of dried leaves
Neutralisation
Choose the tools that apply the concept of thermochemistry reactions.
Transpiration is a process where plants lose water in the form of water vapour into the atmosphere by....
condensation
evaporation
distillation
sublimation
Choose the part of a plant where transpiration takes place.
root
stem
flower
leaf
The following structures are found in a cross section of a leaf except....
lower epidermis
spongy mesophyll cells
palisade mesophyll cells
epithelial cells
Which of the following helps to reduce the lose of water from a plant?
the arrangement of palisade mesophyll cells
the presence of xylem
the waxy layer of cuticle
the arrangement of spongy mesophyll cells
The water lose from a plant through the
xylem
phloem
stomata
epidermis
The opening of closing of stomata is controlled by the...
guard cells
palisade cells
lower epidermis cells
phloem
During day, stomata usually..
closed
opened
shrink
expand
During photosynthesis, this substance enter the leaf through the stomata.
water
glucose
carbon dioxide
oxygen
In plants, water can lose through these processes...
Transpiration
Translocation
Guttation
Secretion
The water droplets which formed through guttation is known as....
water vapour
tears
dew
sweat
Choose the factors which can affect the rate of transpiration.
temperature
humidity
light intensity
air movement
The following factor can also affect the rate of transpiration..
the number of leaves
the number of flowers
the number of stomata
the amount of water in the soil
Which situation can increases the rate of transpiration?
A plant without leaves
A plant placed under the roof
A plant placed in the room with air conditioner
A plant placed in front of a table fan with speed 2
Vascular bundle consists of...
stem
xylem
root
phloem
Function of xylem is to....
transport the product of photosynthesis
transport water from the root
transport minerals from the root to the leaves
transport water and minerals from the root to the leaves
The diagram shows the arrangement of vascular bundle found in..
root
leaf
stem
flower
The function of phloem is to...
transport minerals from the root to the leaves
transport sucrose formed during photosynthesis from the leaves to other parts of the plant
transport glucose formed during photosynthesis from the leaves to other parts of the plant
transport sucrose formed during photosynthesis from the root to other parts of the plant
the diagram shows a cross section of a leaf. What is X?
Phloem
stoma
xylem
guard cells
The diagram shows a stem which the phloem has been removed. What will happen to the plant after 2 weeks?
The plant die
The upper part of the stem becomes swollen
The lower part of the stem becomes swollen
The root becomes swollen
A few days after the experiment, the plant can still carry out photosynthesis. Why?
The new phloem is produced
The xylem can still transports water and mineral
Photosynthesis is not affected at all
The plant can survives without phloem
Reactivity of metal towards oxygen increases down the reactivity series of metal diagram
True
False
In a vigorous reaction between a more reactive metal such as magnesium and oxygen, a bright flame is observed
True
False
In a less vigorous reaction between a less reactive metal such as iron and oxygen, only a glow or slow change in colour is observed
True
False
Magnesium is more reactive towards oxygen compared to
Calcium
Zinc
Sodium
Potassium
If carbon can remove oxygen from a metal oxide, it means carbon is ___________ reactive than the metal.
more
less
The most reactive metal in the reactivity series of metals is ______________.
Calcium
Potassium
Magnesium
Aluminium
What are the two non-metal elements that are included in the reactivity series of metals?
Calcium
Carbon
Sodium
Hydrogen
Choose the correct sequence.
.............. , ............ , .........
----------------------------------->
Reactivity towards oxygen increases
Silver , Copper , Tin
Iron , Lead , Mercury
Magnesium , Aluminium , Calcium
Iron , Carbon , Lead
What will happened when lead oxide react with hydrogen?
Lead oxide burns brightly
Yellow powder turns shiny grey
Lead is produced
All of the above
Based on the diagram, what is the function of anhydrous calcium chloride in the experiment?
To absorb water vapour so that dry hydrogen will be produced
To supply hydrogen gas
To separate the metals
To release heat for combustion
The diagram shows a setup apparatus for an experiment. What is the aim of the experiment?
To determine the position of carbon in the reactivity series of metals
To determine the position of hydrogen in the reactivity series of metals
To observe the reactivity of metals with carbon dioxide
To observe the reactivity of metals with water
Antara hubungan organ deria dengan rangsangan di bawah, yang manakah tidak benar?
Which pair of the sensory organ with stimulus below, is not true?
Mata/Eyes - Cahaya/Light
Hidung/Nose - Udara/Air
Lidah/Tongue - Bahan kimia/Chemical substances
Telinga/Ear - Bunyi/Sound
What are the factors that affect the sensitivity of the skin?
Apakah faktor-faktor yang memberi kesan kepada kepekaan kulit?
I The number of sensory receptors present
Bilangan reseptor deria yang hadir
II The thickness of epidermis layer
Ketebalan lapisan epidermis
III The thickness of dermis layer
Ketebalan lapisan dermis
I and II only
I and III only
II and III only
I, II and III
What sensory organ is used by blind people in Braille reading?
Apakah organ deria yang digunakan oleh orang cacat penglihatan dalam membaca Braille?
Skin
Nose
Eye
Tongue
Diagram 1 shows the cross section of a human eye.
Name the parts Z
Iris
Optic nerve
Cornea
Pupil
Diagram 2 shows the cross section of the human nose.
What is the function of X?
Moistens the nasal cavity
Melembapkan rongga nasal
Interprets the impulses as a smell
Menterjemahkan impuls sebagai satu bau
Secretes mucus to dissolve the chemicals
Mengeluarkan mukus untuk melarutkkan kimia
Detects and sends the impulses to the brain
Mengesan dan menghantar impuls kepada otak
Does a simple organism have a specific transport system?
Adakah organisma ringkas mempunyai sistem pengangkutan yang khusus?
YES/YA
NO/TIDAK
Name the process of transporting necessary substances of the cells and excretory products through the cell membrane.
Namakan proses pengangkutan bahan keperluan sel dan hasil kumuh melalui membran sel.
Transportation/Pengangkutan
Diffussion/Resapan
Respiration/Respirasi
What is the function of the heart?
Apakah fungsi jantung?
To pump blood to all parts of the body
Mengepam darah ke seluruh badan
To pump blood to upper parts of the body
Mengepam darah ke bahagian atas badan
To pump blood to lower parts of the body
Mengepam darah ke bahagian bawah badan
