BIOLOGY
What is the basic unit of life?
The cell
What is the chemical symbol for water?
H₂O
What force pulls objects toward the Earth?
Gravity
What gas do plants absorb from the atmosphere during photosynthesis?
Carbon dioxide
What planet is known as the Red Planet?
Mars
Which organelle is responsible for producing energy in a cell?
Mitochondrion
What is the pH of a neutral solution?
7
What unit is used to measure force?
Newton
What renewable energy source uses moving air to generate electricity?
Wind energy
What part of the brain controls balance and coordination?
Cerebellum
What process do plants use to make their own food using sunlight?
Photosynthesis
What type of bond involves the sharing of electrons?
Covalent bond
What law states that for every action, there is an equal and opposite reaction?
Newton’s Third Law
What term describes species that are at risk of extinction?
Endangered species
What instrument is used to measure temperature?
Thermometer
Which enzyme breaks down hydrogen peroxide into water and oxygen?
Catalase
What law states that mass is neither created nor destroyed in a chemical reaction?
Law of conservation of mass
What type of energy is stored in an object due to its position?
Potential energy
What process describes the increase in Earth’s average temperature due to greenhouse gases?
Global warming
What type of blood cells help fight infections?
White blood cells
What term describes an organism’s ability to maintain a stable internal environment?
Homeostasis
What is the name of the minimum energy required to start a chemical reaction?
Activation energy
What phenomenon explains why light bends when it passes through different materials?
Refraction
What term refers to the variety of life in a given ecosystem?
Biodiversity
What branch of science studies heredity and variation in organisms?
Genetics