Jss1 second term basic science past questions and answers

Jss1 second term basic science past questions and answers

Here are 20 basic science questions for JSS1 (Junior Secondary School 1) students with options and answers:

What is the basic unit of life?

a) Atom

b) Molecule

c) Cell

d) Tissue

Answer: c) Cell

Which gas is most abundant in the Earth's atmosphere?

a) Oxygen

b) Carbon dioxide

c) Nitrogen

d) Hydrogen

Answer: c) Nitrogen

What is the chemical symbol for gold?

a) Ag

b) Fe

c) Au

d) Hg

Answer: c) Au

Which planet is known as the "Red Planet"?

a) Venus

b) Mars

c) Jupiter

d) Saturn

Answer: b) Mars

What is the process of plants making food using sunlight called?

a) Respiration

b) Photosynthesis

c) Digestion

d) Fermentation

Answer: b) Photosynthesis

Which of the following is NOT a type of simple machine?

a) Lever

b) Wheel and axle

c) Pulley

d) Battery

Answer: d) Battery

What is the chemical symbol for water?

a) H2O

b) CO2

c) O2

d) NaCl

Answer: a) H2O

Which planet is the closest to the Sun in our solar system?

a) Venus

b) Earth

c) Mars

d) Mercury

Answer: d) Mercury

What is the process of a liquid turning into a gas called?

a) Freezing

b) Melting

c) Boiling

d) Condensation

Answer: c) Boiling

What is the primary function of the heart in the human body?

a) Pumping blood

b) Digesting food

c) Breathing

d) Thinking

Answer: a) Pumping blood

What is the chemical symbol for oxygen?

a) O

b) Ox

c) Oxg

d) Oxn

Answer: a) O

Which of the following is a renewable source of energy?

a) Coal

b) Natural gas

c) Solar power

d) Nuclear power

Answer: c) Solar power

What is the smallest planet in our solar system?

a) Earth

b) Venus

c) Mars

d) Mercury

Answer: d) Mercury

What is the Earth's outermost layer called?

a) Crust

b) Mantle

c) Core

d) Atmosphere

Answer: a) Crust

What is the SI unit of electric current?

a) Volt

b) Watt

c) Ampere

d) Ohm

Answer: c) Ampere

What gas do plants absorb from the atmosphere during photosynthesis?

a) Carbon dioxide

b) Oxygen

c) Nitrogen

d) Hydrogen

Answer: a) Carbon dioxide

Which planet has the most extensive ring system in our solar system?

a) Saturn

b) Uranus

c) Neptune

d) Jupiter

Answer: a) Saturn

What is the process of a solid turning into a liquid called?

a) Evaporation

b) Sublimation

c) Melting

d) Freezing

Answer: c) Melting

What is the chemical symbol for iron?

a) Ir

b) Fe

c) Fi

d) In

Answer: b) Fe

Which of the following is a non-renewable source of energy?

a) Wind power

b) Coal

c) Solar power

d) Hydroelectric power

Answer: b) Coal