SBA 2024 Final Term Solved Paper A Grade 8 Science

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PEC Punjab, School based assessment solve papers 2024. Grade 8 Math Original solved Papers of Punjab Examination Commission 2024. Students can check their Papers and Prepare SBA exam under Punjab Examination Commission.

OBJECTIVE PART(MCQs)
SBA 2024 Solved Paper A Grade 8 Science
School Based Assessment 2024

Question No.1 : Which of the following processes is responsible for the production of oxygen in the atmosphere?

(a) Respiration
(b) Photosynthesis
(c) Combustion
(d) Decomposition

Answer:
(b) Photosynthesis

Question No.2 : Which of the following processes brings balance to life on Earth?

(a) Hunting
(b) Industrial smoke
(c) Deforestation
(d) Carbon and oxygen cycle

Answer:
(d) Carbon and oxygen cycle

Question No.3 : Which of the following components is essential for maintaining balance in an ecological system?

(a) Methane
(b) Nitrogen
(c) Oxygen
(d) Sulphur

Answer:
(c) Oxygen

Question No.4 : The function of dendrite in neuron is to:

(a) receive messages
(b) send messages away
(c) control nucleus of neuron
(d) protect cytoplasm

Answer:
(a) receive messages

Question No.5 : An organ system which carries messages from one part of the body to another and coordinates body functions is called:

(a) respiratory system
(b) digestive system
(c) nervous system
(d) reproductive system

Answer:
(c) nervous system

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SBA 2024 Solved Paper A Grade 8 Science
School Based Assessment 2024 Solved Papers

SBA 2024 Solved Paper A Grade 8 Science

Question No.6 : The effector in the reflex action of a body will be:

(a) hand
(b) brain
(c) spinal cord
(d) muscle

Answer:
(d) muscle

Question No.7 : Which of the following is an environmental variation?

(a) Eye colour
(b) Skin colour
(c) Scar on skin
(d) Blood type

Answer:
(c) Scar on skin

Question No.8 : Which of the following is an example of genetic variation?

(a) Skin colour
(b) Language
(c) Scars on skin
(d) Hair length

Answer:
(a) Skin colour

Question No.9 : Which plant develops structural adaptation to conserve water for a long time?

(a) Cactus
(b) Guava
(c) Mango
(d) Rose

Answer:
(a) Cactus

Question No.10 : Which bond holds the two strands of DNA together?

(a) Ionic bond
(b) Covalent bond
(c) Hydrogen bond
(d) Metallic bond

Answer:
(c) Hydrogen bond

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SBA 2024 Solved Paper A Grade 8 Science
School Based Assessment 2024 Solved Papers

SBA 2024 Solved Paper A Grade 8 Science

Question No.11 : Which product is used to treat infectious diseases?

(a) Insulin
(b) Interferon
(c) Vaccine
(d) Beta-Endorphin

Answer:
(c) Vaccine

Question No.12 : How many electrons are present in the valence shell of elements of group 13?

(a) 1
(b) 2
(c) 3
(d) 4

Answer:
(c) 3

Question No.13 : Diamond is the form of which element?

(a) Phosphorus
(b) Hydrogen
(c) Oxygen
(d) Carbon

Answer:
(d) Carbon

Question No.14 : Which of the following is a chemical reaction?

(a) Melting of ice
(b) Boiling of water
(c) Tearing a piece of paper
(d) Burning of coal

Answer:
(d) Burning of coal

Question No.15 : The conversion of milk into yogurt is called______reaction.

(a) addition
(b) fermentation
(c) decomposition
(d) combination

Answer:
(b) fermentation

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SBA 2024 Solved Paper A Grade 8 Science
School Based Assessment 2024 Solved Papers

SBA 2024 Solved Paper A Grade 8 Science

Question No.16 : Burning is an example of which type of reaction?

(a) Exothermic
(b) Endothermic
(c) Condensation
(d) Combination

Answer:
(a) Exothermic

Question No.17 : Which of the following molecules shows ionic bonding?

(a) H —— Br
(b) Na —— Cl
(c) H —— Br
(d) H —-N —-H

Answer:
(b) Na —— Cl

Question No.18 : HCl solution will turn:

(a) phenolphthalein to pink
(b) red litmus to blue
(c) blue litmus to red
(d) methyl orange to yellow

Answer:
AAA

Question No.19 : Which acid is used in the manufacturing of urea fertilizers?

(a) HNO₃
(b) HCl
(c) H2SO4
(d) H3PO4

Answer:
(a) HNO₃

Question No.20 : Which unit is used to express pressure?

(a) N/m
(b) N/m ^-1
(c) N/m²
(d) N/m ^-2

Answer:
(c) N/m²

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SBA 2024 Solved Paper A Grade 8 Science
School Based Assessment 2024 Solved Papers

SBA 2024 Solved Paper A Grade 8 Science

Question No.21 : Find the pressure if F=10N and A=5m²

(a) 2Pa
(b) 5Pa
(c) 10Pa
(d) 15Pa

Answer:
(a) 2Pa

Question No.22 : Which object will thrust into Earth due to high pressure?

Answer:
D.

Question No.23 : The speed of light is fastest in which medium?

(a) Solid
(b) Liquid
(c) Gas
(d) Vacuum

Answer:
(d) Vacuum

Question No.24 : Periscopes are used in:

(a) tanks
(b) hospitals
(c) radio
(d) television

Answer:
(a) tanks

Question No.25 : Twinkling of stars can be seen due to _________ of light.

(a) reflection
(b) refraction
(c) absorption
(d) transmission

Answer:
(b) refraction

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SBA 2024 Solved Paper A Grade 8 Science
School Based Assessment 2024 Solved Papers

SBA 2024 Solved Paper A Grade 8 Science

Question No.26 : The ratio of the voltage and the current across the conductor is called:

(a) electric power
(b) resistance
(c) magnetic field
(d) charge

Answer:
(b) resistance

Question No.27 : Identify the circuit from the following, in which the bulb will be turned on.

Answer:
D.

Question No.28 : current is passing through a circuit to which voltage is provided. What will be the value of resistance of circuit?

(a) 1. 6Ω
(b) 1. 7Ω
(c) 1. 8Ω
(d) 1. 9Ω

Answer:
(a) 1. 6Ω

Question No.29 : Which of the following is used as a plasticizer?

(a) Milk
(b) Glycerol
(c) Starch
(d) Vinegar

Answer:
(b) Glycerol

Question No.30 : The function of inverters is to convert:

(a) DC into DC
(b) AC into DC
(c) AC into AC
(d) DC into AC

Answer:
(d) DC into AC

Question No.31 : The surface temperature of the Sun is:

(a) 4000°C
(b) 5000°C
(c) 6000°C
(d) 7000°C

Answer:
(c) 6000°C

Question No.32 : “LIGO” scientists’ detected a violent disturbance in space in 2015 caused by colliding of black holes. How many light years are these black holes far from the Earth?

(a) 1. 3 hundred
(b) 1. 3 thousand
(c) 1. 3 million
(d) 1. 3 billion

Answer:
(d) 1. 3 billion

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Question No.1 : Which of the following processes is responsible for the production of oxygen in the atmosphere?

Question No.2 : Which of the following processes brings balance to life on Earth?

Question No.3 : Which of the following components is essential for maintaining balance in an ecological system?

Question No.4 : The function of dendrite in neuron is to:

Question No.5 : An organ system which carries messages from one part of the body to another and coordinates body functions is called:

SBA 2024 Solved Paper A Grade 8 Science

Question No.6 : The effector in the reflex action of a body will be:

Question No.7 : Which of the following is an environmental variation?

Question No.8 : Which of the following is an example of genetic variation?

Question No.9 : Which plant develops structural adaptation to conserve water for a long time?

Question No.10 : Which bond holds the two strands of DNA together?

SBA 2024 Solved Paper A Grade 8 Science

Question No.11 : Which product is used to treat infectious diseases?

Question No.12 : How many electrons are present in the valence shell of elements of group 13?

Question No.13 : Diamond is the form of which element?

Question No.14 : Which of the following is a chemical reaction?

Question No.15 : The conversion of milk into yogurt is called______reaction.

SBA 2024 Solved Paper A Grade 8 Science

Question No.16 : Burning is an example of which type of reaction?

Question No.17 : Which of the following molecules shows ionic bonding?

Question No.18 : HCl solution will turn:

Question No.19 : Which acid is used in the manufacturing of urea fertilizers?

Question No.20 : Which unit is used to express pressure?

SBA 2024 Solved Paper A Grade 8 Science

Question No.21 : Find the pressure if F=10N and A=5m2

Question No.22 : Which object will thrust into Earth due to high pressure?

Question No.23 : The speed of light is fastest in which medium?

Question No.24 : Periscopes are used in:

Question No.25 : Twinkling of stars can be seen due to _________ of light.

SBA 2024 Solved Paper A Grade 8 Science

Question No.26 : The ratio of the voltage and the current across the conductor is called:

Question No.27 : Identify the circuit from the following, in which the bulb will be turned on.

Question No.28 : current is passing through a circuit to which voltage is provided. What will be the value of resistance of circuit?

Question No.29 : Which of the following is used as a plasticizer?

Question No.30 : The function of inverters is to convert:

Question No.31 : The surface temperature of the Sun is:

Question No.32 : “LIGO” scientists’ detected a violent disturbance in space in 2015 caused by colliding of black holes. How many light years are these black holes far from the Earth?

Question No.21 : Find the pressure if F=10N and A=5m²