General Science Test Flashcards
7 cards from real ASVAB practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 General Science Test flashcards as text
Which organ in the human body is primarily responsible for filtering blood and producing urine?
Answer: Kidney
The kidneys filter waste products from the blood and regulate water balance by producing urine.
What is the term for a change in state directly from solid to gas without passing through the liquid phase?
Answer: Sublimation
Sublimation is the phase transition from solid directly to gas, as seen with dry ice (solid CO₂).
Which element is most abundant in Earth's atmosphere by volume?
Answer: Nitrogen
Nitrogen makes up approximately 78% of Earth's atmosphere, far exceeding oxygen at about 21%.
What type of chemical bond involves the sharing of electrons between atoms?
Answer: Covalent bond
A covalent bond forms when two atoms share one or more pairs of electrons to achieve stable configurations.
What is the unit used to measure electric current?
Answer: Ampere
The ampere (amp) is the SI unit for electric current, measuring the flow of electric charge per second.
Which process describes the movement of water through a semi-permeable membrane from an area of low solute concentration to high solute concentration?
Answer: Osmosis
Osmosis is the passive movement of water across a semi-permeable membrane toward the region of higher solute concentration.
What is the main function of red blood cells in the human body?
Answer: Transporting oxygen
Red blood cells (erythrocytes) contain hemoglobin, which binds to oxygen and transports it throughout the body.