Jss2 third Term basic science past questions and answers

Jss2 third Term basic science past questions and answers

Here they are;

Question: What is the chemical symbol for oxygen gas?

Options:

A) O2

B) H2O

C) CO2

D) N2

Answer: A) O2

Question: Which planet is known for its beautiful blue color and has a large system of rings?

Options:

A) Earth

B) Saturn

C) Mars

D) Uranus

Answer: B) Saturn

Question: What is the process by which plants produce glucose and oxygen from carbon dioxide and sunlight?

Options:

A) Respiration

B) Combustion

C) Fermentation

D) Photosynthesis

Answer: D) Photosynthesis

Question: What is the chemical symbol for calcium?

Options:

A) Ca

B) Cl

C) Cu

D) C

Answer: A) Ca

Question: Which gas is responsible for the ozone layer's protection from harmful ultraviolet (UV) radiation?

Options:

A) Oxygen

B) Carbon dioxide

C) Ozone

D) Nitrogen

Answer: C) Ozone

Question: What is the SI unit of force?

Options:

A) Meter

B) Kilogram

C) Newton

D) Joule

Answer: C) Newton

Question: What is the chemical formula for methane, a flammable gas often used for cooking?

Options:

A) CH4

B) H2O

C) CO2

D) N2

Answer: A) CH4

Question: Which part of the flower produces pollen?

Options:

A) Stamen

B) Petal

C) Sepal

D) Pistil

Answer: A) Stamen

Question: What is the study of the Earth's atmosphere and weather called?

Options:

A) Biology

B) Geology

C) Meteorology

D) Astronomy

Answer: C) Meteorology

Question: What is the chemical symbol for sodium?

Options:

A) Sa

B) Sn

C) Sd

D) Na

Answer: D) Na

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

Options:

A) Boiling

B) Freezing

C) Condensation

D) Evaporation

Answer: B) Freezing

Question: Which gas is essential for respiration and is transported by red blood cells in the human body?

Options:

A) Carbon dioxide

B) Oxygen

C) Nitrogen

D) Hydrogen

Answer: B) Oxygen

Question: What is the chemical symbol for nitrogen gas, which makes up a significant portion of the Earth's atmosphere?

Options:

A) Ni

B) Ne

C) N2

D) Na

Answer: C) N2

Question: What is the process of separating a mixture based on the differences in boiling points of its components?

Options:

A) Filtration

B) Distillation

C) Evaporation

D) Sublimation

Answer: B) Distillation

Question: Which of the following is not a primary color in the additive color model?

Options:

A) Red

B) Green

C) Blue

D) Yellow

Answer: D) Yellow

Question: What is the chemical symbol for carbon, which is the basis of organic chemistry?

Options:

A) C

B) Ca

C) Co

D) Cr

Answer: A) C

Question: Which gas do plants release during respiration?

Options:

A) Oxygen

B) Carbon dioxide

C) Nitrogen

D) Hydrogen

Answer: B) Carbon dioxide

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

Options:

A) Condensation

B) Melting

C) Sublimation

D) Evaporation

Answer: A) Condensation

Question: What is the chemical symbol for iron?

Options:

A) Fe

B) Ir

C) In

D) Ni

Answer: A) Fe

Question: Which gas is known as "Laughing Gas" and is used as an anesthetic in dentistry?

Options:

A) Oxygen

B) Nitrous oxide

C) Carbon dioxide

D) Helium

Answer: B) Nitrous oxide