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Past Questions and Answers

JSS1 Second Term Basic Science Past Questions And Answers

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JSS1 Second Term Basic Science Past Questions And Answers

 

20 Basic Science questions for JSS1 Second Term, each with options and answers:

 

Question: Which gas is essential for respiration in humans?

 

A) Nitrogen

B) Oxygen

C) Carbon Dioxide

D) Hydrogen

Answer: B) Oxygen

Question: What is the smallest unit of an element that retains its properties?

 

A) Molecule

B) Atom

C) Cell

D) Compound

Answer: B) Atom

Question: In the water cycle, what process involves water turning into vapor?

 

A) Condensation

B) Evaporation

C) Precipitation

D) Sublimation

Answer: B) Evaporation

Question: What is the SI unit for measuring temperature?

 

A) Kelvin

B) Celsius

C) Fahrenheit

D) Joule

Answer: A) Kelvin

Question: Which type of rock is formed from cooling and solidification of lava?

 

A) Sedimentary

B) Metamorphic

C) Igneous

D) Granite

Answer: C) Igneous

Question: What is the process of changing from a liquid to a gas at temperatures below the boiling point called?

 

A) Boiling

B) Freezing

C) Condensation

D) Sublimation

Answer: C) Condensation

Question: What is the role of chlorophyll in photosynthesis?

 

A) Absorbing sunlight

B) Producing oxygen

C) Breaking down glucose

D) Storing energy

Answer: A) Absorbing sunlight

Question: Which planet is known for its prominent ring system?

 

A) Jupiter

B) Saturn

C) Neptune

D) Uranus

Answer: B) Saturn

Question: What is the process by which plants lose water through small openings in their leaves?

 

A) Transpiration

B) Respiration

C) Absorption

D) Photosynthesis

Answer: A) Transpiration

Question: What is the main function of the nervous system?

 

A) Circulation

B) Digestion

C) Coordination

D) Reproduction

Answer: C) Coordination

Question: Which type of energy is stored in food?

 

A) Potential energy

B) Kinetic energy

C) Chemical energy

D) Thermal energy

Answer: C) Chemical energy

Question: What is the process of the Earth orbiting around the Sun?

 

A) Revolution

B) Rotation

C) Axial tilt

D) Orbiting

Answer: A) Revolution

Question: Which gas is responsible for the depletion of the ozone layer?

 

A) Carbon Dioxide

B) Methane

C) Chlorofluorocarbons (CFCs)

D) Nitrous Oxide

Answer: C) Chlorofluorocarbons (CFCs)

Question: What is the process of converting a solid directly into a gas without passing through the liquid state?

 

A) Evaporation

B) Sublimation

C) Condensation

D) Freezing

Answer: B) Sublimation

Question: What is the main function of the respiratory system?

 

A) Pumping blood

B) Filtering air

C) Exchanging gases

D) Breaking down food

Answer: C) Exchanging gases

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) K

C) Mg

D) Ca

Answer: A) Na

Question: Which type of energy is associated with the motion of an object?

 

A) Potential energy

B) Kinetic energy

C) Chemical energy

D) Nuclear energy

Answer: B) Kinetic energy

Question: What is the process of a substance changing from a gas to a liquid?

 

A) Sublimation

B) Evaporation

C) Condensation

D) Freezing

Answer: C) Condensation

Question: In the water cycle, what process involves water falling from the atmosphere

to the Earth’s surface?

 

A) Evaporation

B) Condensation

C) Precipitation

D) Infiltration

Answer: C) Precipitation.

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