General Science Concepts Flashcards
6 cards from real AFCT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 General Science Concepts flashcards as text
What is the smallest unit of an element that retains its chemical properties?
Answer: Atom
An atom is the smallest unit of an element that maintains the chemical properties of that element.
Which organ in the human body is responsible for filtering blood and producing urine?
Answer: Kidney
The kidneys filter waste products from the blood and produce urine as part of the excretory system.
What is the process by which plants convert sunlight into chemical energy?
Answer: Photosynthesis
Photosynthesis is the process where plants use sunlight, water, and carbon dioxide to produce glucose and oxygen.
What force keeps planets in orbit around the sun?
Answer: Gravitational force
Gravity is the force that keeps planets in orbit by pulling them toward the sun while their orbital velocity prevents them from falling into it.
Which state of matter has a definite volume but no definite shape?
Answer: Liquid
A liquid has a definite volume but takes the shape of whatever container holds it.
What is the pH of pure water?
Answer: 7
Pure water has a neutral pH of 7, which is exactly in the middle of the pH scale (0-14).