ASVAB General Science (GS) Real practice Exam
With Actual Questions,Rationales And Verified
Answers/Expert Verified For Guaranteed Pass
2025/2026/Latest Update/Instant Download Pdf
1. Which of the following is an example of a physical change?
A) Rusting of iron
B) Burning of wood
C) Melting of ice
D) Baking a cake
Answer: C) Melting of ice
Rationale: Melting ice changes its state from solid to liquid without altering its chemical
composition, making it a physical change.
2. Which organ is primarily responsible for pumping blood throughout the body?
A) Lungs
B) Heart
C) Liver
D) Kidneys
Answer: B) Heart
Rationale: The heart circulates blood through the body, supplying oxygen and nutrients to
tissues.
3. What is the chemical symbol for sodium?
A) S
B) Na
C) So
D) Sn
Answer: B) Na
Rationale: Sodium’s symbol on the periodic table is Na, derived from the Latin word
“Natrium.”
,4. Which planet is known as the “Red Planet”?
A) Venus
B) Mars
C) Jupiter
D) Saturn
Answer: B) Mars
Rationale: Mars appears red due to iron oxide (rust) on its surface.
5. Water boils at what temperature under standard atmospheric pressure?
A) 100°C
B) 212°F
C) Both A and B
D) 0°C
Answer: C) Both A and B
Rationale: 100°C is equivalent to 212°F; both represent the boiling point of water at 1
atmosphere of pressure.
6. Which part of the cell contains the genetic material?
A) Cytoplasm
B) Nucleus
C) Ribosome
D) Cell membrane
Answer: B) Nucleus
Rationale: The nucleus stores DNA, which controls cell function and inheritance.
7. Which gas do humans exhale in the largest quantity?
A) Oxygen
B) Carbon dioxide
C) Nitrogen
D) Hydrogen
Answer: B) Carbon dioxide
Rationale: Humans inhale oxygen and exhale carbon dioxide as a byproduct of respiration.
8. Which type of energy is associated with motion?
A) Potential energy
, B) Kinetic energy
C) Thermal energy
D) Chemical energy
Answer: B) Kinetic energy
Rationale: Kinetic energy is the energy of motion; the faster an object moves, the more
kinetic energy it has.
9. Which layer of Earth is liquid?
A) Crust
B) Mantle
C) Outer core
D) Inner core
Answer: C) Outer core
Rationale: The outer core is composed of molten iron and nickel, while the inner core is
solid.
10. Which of the following is a carbohydrate?
A) Glucose
B) Lipid
C) Protein
D) Nucleic acid
Answer: A) Glucose
Rationale: Glucose is a simple sugar and a basic form of carbohydrate used by cells for
energy.
11. The process by which plants make food using sunlight is called:
A) Respiration
B) Photosynthesis
C) Fermentation
D) Digestion
Answer: B) Photosynthesis
Rationale: Photosynthesis converts sunlight, water, and carbon dioxide into glucose and
oxygen.
With Actual Questions,Rationales And Verified
Answers/Expert Verified For Guaranteed Pass
2025/2026/Latest Update/Instant Download Pdf
1. Which of the following is an example of a physical change?
A) Rusting of iron
B) Burning of wood
C) Melting of ice
D) Baking a cake
Answer: C) Melting of ice
Rationale: Melting ice changes its state from solid to liquid without altering its chemical
composition, making it a physical change.
2. Which organ is primarily responsible for pumping blood throughout the body?
A) Lungs
B) Heart
C) Liver
D) Kidneys
Answer: B) Heart
Rationale: The heart circulates blood through the body, supplying oxygen and nutrients to
tissues.
3. What is the chemical symbol for sodium?
A) S
B) Na
C) So
D) Sn
Answer: B) Na
Rationale: Sodium’s symbol on the periodic table is Na, derived from the Latin word
“Natrium.”
,4. Which planet is known as the “Red Planet”?
A) Venus
B) Mars
C) Jupiter
D) Saturn
Answer: B) Mars
Rationale: Mars appears red due to iron oxide (rust) on its surface.
5. Water boils at what temperature under standard atmospheric pressure?
A) 100°C
B) 212°F
C) Both A and B
D) 0°C
Answer: C) Both A and B
Rationale: 100°C is equivalent to 212°F; both represent the boiling point of water at 1
atmosphere of pressure.
6. Which part of the cell contains the genetic material?
A) Cytoplasm
B) Nucleus
C) Ribosome
D) Cell membrane
Answer: B) Nucleus
Rationale: The nucleus stores DNA, which controls cell function and inheritance.
7. Which gas do humans exhale in the largest quantity?
A) Oxygen
B) Carbon dioxide
C) Nitrogen
D) Hydrogen
Answer: B) Carbon dioxide
Rationale: Humans inhale oxygen and exhale carbon dioxide as a byproduct of respiration.
8. Which type of energy is associated with motion?
A) Potential energy
, B) Kinetic energy
C) Thermal energy
D) Chemical energy
Answer: B) Kinetic energy
Rationale: Kinetic energy is the energy of motion; the faster an object moves, the more
kinetic energy it has.
9. Which layer of Earth is liquid?
A) Crust
B) Mantle
C) Outer core
D) Inner core
Answer: C) Outer core
Rationale: The outer core is composed of molten iron and nickel, while the inner core is
solid.
10. Which of the following is a carbohydrate?
A) Glucose
B) Lipid
C) Protein
D) Nucleic acid
Answer: A) Glucose
Rationale: Glucose is a simple sugar and a basic form of carbohydrate used by cells for
energy.
11. The process by which plants make food using sunlight is called:
A) Respiration
B) Photosynthesis
C) Fermentation
D) Digestion
Answer: B) Photosynthesis
Rationale: Photosynthesis converts sunlight, water, and carbon dioxide into glucose and
oxygen.
