Jss3 second Term basic science past questions and answers

Jss3 second Term basic science past questions and answers

Basic science questions for JSS3, along with multiple-choice options and answers:

What is the chemical symbol for iron?

A) Ir

B) Fe

C) In

D) I

Answer: B) Fe

What is the SI unit for measuring electric resistance?

A) Ohm

B) Watt

C) Volt

D) Ampere

Answer: A) Ohm

What is the smallest unit of matter that retains the properties of an element?

A) Atom

B) Molecule

C) Compound

D) Cell

Answer: A) Atom

What is the main function of the respiratory system in the human body?

A) Digestion

B) Transportation of nutrients

C) Breathing and gas exchange

D) Blood clotting

Answer: C) Breathing and gas exchange

Which gas is responsible for the blue color of the Earth's sky during the day?

A) Oxygen

B) Carbon dioxide

C) Nitrogen

D) Oxygen

Answer: C) Nitrogen

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

A) Sublimation

B) Condensation

C) Evaporation

D) Melting

Answer: B) Condensation

What is the chemical formula for methane, a greenhouse gas produced by livestock and natural gas?

A) CH4

B) CO2

C) O2

D) N2

Answer: A) CH4

What is the process of blood moving through the circulatory system to deliver oxygen and nutrients to cells?

A) Respiration

B) Digestion

C) Circulation

D) Excretion

Answer: C) Circulation

Which of the following is a renewable source of energy?

A) Natural gas

B) Nuclear power

C) Solar power

D) Coal

Answer: C) Solar power

What is the force that resists the motion of one surface sliding or rolling over another?

A) Gravity

B) Magnetism

C) Friction

D) Tension

Answer: C) Friction

What is the process by which a caterpillar transforms into a butterfly?

A) Metamorphosis

B) Photosynthesis

C) Respiration

D) Germination

Answer: A) Metamorphosis

Which gas is most abundant in Earth's atmosphere?

A) Oxygen

B) Carbon dioxide

C) Nitrogen

D) Hydrogen

Answer: C) Nitrogen

What is the study of the Earth's weather and atmospheric conditions called?

A) Geology

B) Astronomy

C) Meteorology

D) Oceanography

Answer: C) Meteorology

What is the process of rocks breaking down into smaller pieces due to weathering and erosion?

A) Volcanism

B) Sedimentation

C) Erosion

D) Deposition

Answer: C) Erosion

What is the chemical symbol for carbon?

A) Cr

B) Co

C) Ca

D) C

Answer: D) C

Which gas is produced by green plants during photosynthesis and is essential for respiration in animals?

A) Nitrogen

B) Oxygen

C) Carbon dioxide

D) Helium

Answer: B) Oxygen

What is the process by which an object falls to the ground due to gravity?

A) Floatation

B) Levitation

C) Freefall

D) Gliding

Answer: C) Freefall

What is the Earth's largest and most important natural satellite?

A) Venus

B) Mars

C) Jupiter

D) Moon

Answer: D) Moon

What is the chemical symbol for silver?

A) Si

B) Sv

C) Ag

D) Al

Answer: C) Ag

Which organ in the human body is responsible for filtering waste products from the blood and producing urine?

A) Liver

B) Lungs

C) Kidneys

D) Heart

Answer: C) Kidneys