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WorksheetsScience KSSM Form 4
Total questions: 62
Worksheet time: 35mins
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D
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D
The diagram shows the symbol of the sulphur element. Which of the following is the correct electron configuration for the sulphur element?
2.8.4
2.8
2.6
2.8.6
The diagram shows the atom named Lithium. What is the number of protons and the relative atomic mass of the atom?
Protons - 7; Relative atomic mass - 3
Protons - 3; Relative atomic mass - 7
Protons - 3; Relative atomic mass - 10
Protons - 10; Relative atomic mass - 7
Which of the following is true about the formation of the Q ion from Q atom?
Q atom is very stable and donates 3 electrons to form the Q ion
Q atom is unstable, thus donates 3 electrons to form the Q ion.
Q ion received 3 electrons to form a stable octet arrangement
Q ion is unstable because it formed from unstable Q atom
Isotope K is used in the treatment of cancer. What is isotope K?
Americium-241
Cobalt-60
Iodine-131
Uranium-235
Number 2 is:
Chromatid
Centrosome
Chomatin
Centromere
From smallest to largest how would genetic information be organized?
genes, cell, nucleus, chromosome, DNA
DNA, gene, chromosome, nucleus, cell
chromosome, cell, gene, DNA, nucleus
nucleus, cell, gene, DNA, chromosome
Which of the following is true about Green Technology?
Increases waste production
Helps to minimise the degradation and conservation of the environment
Increases the emissions of greenhouse gases
Increases the use of natural resources
Which of the following is a natural process that reduces the percentage of carbon dioxide in atmosphere?
Respiration
Transpiration
Photosynthesis
Decomposition
The National Green Technology Policy has four main pillars. Which is not the main pillar?
Energy
Social
Environment
Culture
Uncontrolled emission of greenhouse gases
Corrosion caused by acid rain
Disposal of solid waste such as plastics into the rivers and the seas
Increase in the sea salinity level at the Artic and Antarctica
Which of the following gases is the major contributor to global warming?
Methane
Nitrogen
Hydrogen
Carbon dioxide
Which of the following is not a renewable energy source?
Antara berikut, yang mana bukan sumber tenaga boleh baharu?
Wind
Angin
Water
Air
Biomass
Biojisim
Natural gas
Gas asli
Which of the following gases is released from the waste?
Antara berikut, gas yang manakah dibebaskan daripada sisa?
Oxygen
Oksigen
Methane
Metana
Nitrogen
Nitrogen
Carbon dioxide
Karbon dioksida
Which of the following types of waste costs the highest to recycle?
Antara berikut, sisa jenis apakah yang paling mahal untuk dikitar semula?
Biodegradable wastes
Sisa biodegradasi
Medical wastes
Sisa perubatan
Chemical wastes
Sisa kimia
Nuclear wastes
Sisa nuklear
Biogas is one of the bioenergy that can be used in agriculture. What is the main composition found in biogas?
Biogas merupakan salah satu tenaga bio yang boleh digunakan dalam pertanian. Apakah komposisi utama yang terdapat dalam biogas?
Methane
Metana
Nitrogen
Nitrogen
Hydrogen
Hidrogen
Carbon dioxide
Karbon dioksida
Which of the following is not the effect of global warming?
Antara berikut, yang manakah bukan kesan pemanasan global?
Raising sea water level
Meningkatkan paras air laut
Lead to climate changes
Menyebabkan perubahan iklim
Changes in rainfall distribution
Mengubah taburan hujan
Destroy the habitat of flora and fauna
Memusnahkan habitat flora dan fauna
Apakah fungsi alat dalam gambar ini?
Menentukan suhu badan
Menentukan tekanan darah
Mendapatkan bacaan indeks jisim badan
Mendapatkan suhu dan tekanan bilik
Termometer jenis apakah ini?
Termometer klinik
Termometer makmal
Termometer inframerah
Termometer rektal
Antara yang berikut , yang manakah tidak sesuai menggunakan alat kebakaran jenis ini
Pepejal mudah terbakar seperti kertas dan kayu
Api memasak melibatkan minyak dan gris
Cecair mudah terbakar seperti petroleum
Api melibatkan peralatan elektrik
"The development and application of products, equipment and systems to protect the environment and to minimise the negative impact of human activities"
What is the name of this concept?
New Era Concept
Green Technology Concept
Environmental Concept
Green Plants Concept
The image shows a type of structure. Which of the following is the importance of using this structure?
It is a renewable energy source
It is used to absorb sunlight
It is used to generate nuclear energy
It is used to grind spices and grains
The image above shows a socio-scientific issue related to the Waste Management Sector. Which of the following method is the most suitable in managing this type of waste?
Open burning
Throwing the wastes into the deep sea
Burning the wastes in an incinerator
Dumping it in an abandoned island
The image shows an energy efficient label. What is the meaning of the star on the label?
Type of socket
Energy rating
Amount of energy range
Type of machine
Which of the following is the most suitable way to manage agricultural waste?
Turn it into compost fertilizer
Use it to strengthen the hillside
Use as land mound for housing
Collected and then burned
Which of the following cells is NOT a type of somatic cell?
What is the first phase of Mitosis?
Prophase
Anaphase
Metaphase
Telophase
What phase of mitosis is occuring in the picture?
Prophase
Metaphase
Telophase
Name the phase:
Prophase
Anaphase
Metaphase
Telophase
Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have -
16 chromosomes.
8 chromosomes.
46 chromosomes.
4 chromosomes.
The process of crossing over occurs in what phase of meiosis?
anaphase 1
prophase 2
prophase 1
telophase 1
Which of the following best describes meiosis?
It is carried out in all tissues that require cell replacement
It occurs only in cells in the reproductive structures of an organism
It happens in all of the tissues except the brain and spinal cord
Meiosis makes sperm and egg cells. In humans, sperm and egg cells each have _____ chromosomes. Therefore a fertilized human egg cell (sperm and egg cell combined) would create a cell with _____ chromosomes.
23, 46
2, 4
46, 23
50, 100
Which of these is the importance of
mitosis?
Produce gametes
To replace dead cells
Variations
Which statement states the importance of meiosis?
Repair broken tissues
Produce diploid gamete
Produce haploid gamete
Diagram shows a stage in the human ovum forming process. How many chromosomes are there in cell P,Q and R ?
P:23 , Q:46, R:46
P:46 , Q:23 , R:23
Function of the skeletal system
protects internal organs
maintains body weight
maintains body shape
supports body weight
Which types of support possessed by invertebrates?
endoskeleton
exoskeleton
hydrostatic skeleton
What is the type of internal support of clams?
Hydrostatic skeleton
Endoskeleton
Exoskeleton
Exoskeleton and endoskeleton
What is the used by jellyfish for movement?
muscles
fluid pressure in the cavity
joints
cell turgidity
Cranium is used to
protect the heart and lungs
protect the spinal cord
protect the brain
link the upper limbs to the axial skeleton
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C
D
CPR means .....
Caring Pulmonary Resuscitation
Cardiopulmonary Reflex
Cardio Pulse Response
Cardiopulmonary Resuscitation
A cycle of CPR is .....
30 compressions / 2 breaths at 150 compressions per minute
20 compressions / 3 breaths at 100 compression per minute
30 compressions / 2 Breaths per minute
30 compressions / 2 Breaths at 100 compressions per minute
When do you perform CPR?
when the person is unresponsive
when the person is asleep
when the person is talking
when the person is coughing
"Cardio" relates to the "heart" and "pulmonary" relates to "lungs", therefore "cardiopulmonary resuscitation" refers to:
A strong workout
Breathing hard when there is difficulty
Deep compressions
Helping restore breathing and blood circulation for a patient who has suffered cardiac arrest.
What is the universal sign for choking?
flailing around
coughing
holding hands to throat
yelling "i'm choking! I'm choking!"
Heimlich Manoeuver is used
to save a choking victim
as a component of CPR
to get someone to stop coughing
to stop someone from bleeding
When helping someone who is choking, you put your hand in a fist
on their leg
on their face
between their neck and stomach
between their belly button and bottom of their chest
What is cardiopulmonary resuscitation (CPR)?
Apakah maksud Resusitasi Kardiopulmonari?
An emergency help
Bantuan kecemasan
A chest compression technique applied on victims
Teknik tekanan di bahagian dada terhadap mangsa
A mouth-to-mouth resuscitation
Hembusan ke dalam mulut mangsa
An emergency help that involves a combination of chest compressions and breathing into the mouth of the victim
Bantuan kecemasan yang melibatkan gabungan teknik tekanan di bahagian dada dan hembusan ke dalam mulut mangsa
Who should provide CPR assistance?
Siapakah individu yang sepatutnya memberikan bantuan CPR?
Doctors only
Doktor sahaja
Paramedics only
Paramedik sahaja
Teachers only
Guru sahaja
Any individual who knows how to perform the CPR procedure correctly
Semua individu yang tahu akan teknik yang betul memberikan bantuan CPR
CPR should be performed to prevent damage to the brain before medical help arrives. What is the factor that can cause damage to the brain?
CPR perlu dilakukan untuk mencegah kerosakan otak mangsa sementara menunggu bantuan perubatan tiba. Apakah faktor yang boleh menyebabkan kerosakan pada otak?
No ventilation in the brain
Tiada pengudaraan di otak
Head was knocked by friends
Kepala diketuk oleh rakan
Oxygen does not reach the brain within a certain period of time
Oksigen tidak sampai ke otak bagi suatu tempoh tertentu
Lesions on the scalp
Luka pada bahagian kulit kepala
What are the two important techniques when performing CPR?
Apakah dua teknik yang penting semasa melakukan CPR?
Chest compression and blood pumping
Menekan dada dan mengepam darah
Removal of the clogged object and chest compression
Membuang objek tersumbat dan menekan dada
Mouth-to-mouth resuscitation and blood pumping
Memberikan bantuan pernafasan dan mengepam darah
Chest compression and mouth-to-mouth resuscitation
Menekan dada dan memberikan bantuan pernafasan
What is Heimlich Manoeuvre?
Apakah maksud Heimlich Manoeuvre?
An emergency help
Bantuan kecemasan
A chest compression technique applied on victims
Teknik tekanan di bahagian dada kepada seseorang mangsa
An emergency help that is carried out to save a choking individual
Bantuan kecemasan yang dilakukan untuk menyelamatkan mangsa yang tercekik
An emergency help that involves a combination of chest compressions and breathing into the mouth of the victim
Bantuan kecemasan yang melibatkan gabungan teknik tekanan di bahagian dada dan hembusan ke dalam mulut seseorang mangsa
