JSS3 First Term Basic Science Past Questions And Answers
JSS3 First Term Basic Science questions with options and answers:
Question: What is the main function of the respiratory system?
A) Transportation of nutrients
B) Exchange of gases
C) Pumping blood
D) Digestion
Answer: B) Exchange of gases
Question: Which planet is known as the “Red Planet”?
A) Earth
B) Mars
C) Venus
D) Jupiter
Answer: B) Mars
Question: What is the chemical symbol for water?
A) H2O
B) CO2
C) O2
D) CH4
Answer: A) H2O
Question: What unit is used to measure electric current?
A) Volt
B) Ampere
C) Ohm
D) Watt
Answer: B) Ampere
Question: Which of the following is a renewable energy source?
A) Coal
B) Solar
C) Natural Gas
D) Nuclear
Answer: B) Solar
Question: What process involves the conversion of water vapor into liquid water?
A) Evaporation
B) Condensation
C) Sublimation
D) Precipitation
Answer: B) Condensation
Question: What is the SI unit of force?
A) Newton
B) Joule
C) Watt
D) Kilogram
Answer: A) Newton
Question: What is the function of the nervous system?
A) Transport of oxygen
B) Control and coordination
C) Digestion of food
D) Pumping blood
Answer: B) Control and coordination
Question: Which gas is most abundant in the Earth’s atmosphere?
A) Oxygen
B) Nitrogen
C) Carbon dioxide
D) Hydrogen
Answer: B) Nitrogen
Question: What is the formula for calculating speed?
A) Speed = Distance × Time
B) Speed = Time ÷ Distance
C) Speed = Distance + Time
D) Speed = Distance − Time
Answer: A) Speed = Distance × Time
Question: What is the primary function of the kidneys in the human body?
A) Digestion
B) Filtration of blood
C) Pumping blood
D) Respiratory exchange
Answer: B) Filtration of blood
Question: What is the chemical symbol for gold?
A) Gd
B) Au
C) Ag
D) Fe
Answer: B) Au
Question: In the water cycle, what is the process where water is released from plants into the atmosphere?
A) Evaporation
B) Transpiration
C) Condensation
D) Precipitation
Answer: B) Transpiration
Question: What is the function of the red blood cells?
A) Carrying oxygen
B) Fighting infections
C) Clotting blood
D) Carrying nutrients
Answer: A) Carrying oxygen
Question: Which planet is closest to the Sun?
A) Earth
B) Venus
C) Mercury
D) Mars
Answer: C) Mercury
Question: What is the process of converting sunlight into chemical energy in plants?
A) Photosynthesis
B) Respiration
C) Fermentation
D) Combustion
Answer: A) Photosynthesis
Question: What is the function of the ozone layer in the Earth’s atmosphere?
A) Absorbing carbon dioxide
B) Filtering ultraviolet radiation
C) Producing oxygen
D) Generating heat
Answer: B) Filtering ultraviolet radiation
Question: Which of the following is a non-metal?
A) Iron
B) Sodium
C) Oxygen
D) Copper
Answer: C) Oxygen
Question: What is the SI unit of energy?
A) Watt
B) Joule
C) Newton
D) Ampere
Answer: B) Joule
Question: What is the process by which plants m
ake their own food using sunlight?
A) Respiration
B) Fermentation
C) Photosynthesis
D) Combustion
Answer: C) Photosynthesis.
