JSS2 First Term Basic Science Past Questions And Answers
20 JSS2 First Term Basic Science questions with options and answers:
Question: What is the chemical symbol for gold?
A) Au
B) Ag
C) Fe
D) Cu
Answer: A) Au
Question: Which gas do plants absorb from the atmosphere during photosynthesis?
A) Oxygen
B) Nitrogen
C) Carbon Dioxide
D) Hydrogen
Answer: C) Carbon Dioxide
Question: What is the main function of the heart in the human body?
A) Pumping blood
B) Digesting food
C) Producing hormones
D) Filtering waste
Answer: A) Pumping blood
Question: In the water cycle, what process involves the conversion of water vapor into liquid water?
A) Evaporation
B) Condensation
C) Precipitation
D) Transpiration
Answer: B) Condensation
Question: Which planet is known as the “Red Planet”?
A) Venus
B) Mars
C) Jupiter
D) Saturn
Answer: B) Mars
Question: What is the chemical formula for water?
A) H2O2
B) CO2
C) H2O
D) CH4
Answer: C) H2O
Question: Which of the following is a renewable source of energy?
A) Coal
B) Solar
C) Natural Gas
D) Petroleum
Answer: B) Solar
Question: What is the process of a caterpillar turning into a butterfly called?
A) Metamorphosis
B) Fertilization
C) Germination
D) Photosynthesis
Answer: A) Metamorphosis
Question: What is the largest planet in our solar system?
A) Earth
B) Jupiter
C) Saturn
D) Neptune
Answer: B) Jupiter
Question: Which organ in the human body produces insulin?
A) Liver
B) Pancreas
C) Kidneys
D) Stomach
Answer: B) Pancreas
Question: What is the chemical symbol for oxygen?
A) O2
B) O
C) CO2
D) H2O
Answer: B) O
Question: Which gas makes up the majority of Earth’s atmosphere?
A) Oxygen
B) Nitrogen
C) Carbon Dioxide
D) Hydrogen
Answer: B) Nitrogen
Question: What is the process by which plants make their own food using sunlight?
A) Respiration
B) Photosynthesis
C) Transpiration
D) Digestion
Answer: B) Photosynthesis
Question: Which part of the flower produces pollen?
A) Petal
B) Stamen
C) Pistil
D) Sepal
Answer: B) Stamen
Question: What is the unit of measurement for electric current?
A) Volt
B) Ampere
C) Ohm
D) Watt
Answer: B) Ampere
Question: Which layer of the Earth’s atmosphere contains the ozone layer?
A) Troposphere
B) Stratosphere
C) Mesosphere
D) Thermosphere
Answer: B) Stratosphere
Question: What is the chemical symbol for sodium?
A) Na
B) Si
C) Ne
D) Ni
Answer: A) Na
Question: What is the main function of the respiratory system?
A) Pumping blood
B) Filtering waste
C) Breathing
D) Digesting food
Answer: C) Breathing
Question: Which planet is known as the “Morning Star” or “Evening Star”?
A) Mars
B) Venus
C) Mercury
D) Jupiter
Answer: B) Venus
Question: What is the pr
ocess of the Earth rotating on its axis called?
A) Revolution
B) Rotation
C) Orbit
D) Eclipse
Answer: B) Rotation.
