Physics
What force pulls objects toward the Earth?
gravity
What is the chemical symbol for water?
H₂O
What is the powerhouse of the cell?
mitochondria
What is the largest organ in the human body?
skin
What layer of the Earth is made up of liquid iron and nickel?
outer core
What is the unit of measure for electrical resistance?
ohm
What is the atomic number of carbon?
6
What type of blood cells help fight infections?
white blood cells
What is the average resting heart rate for a healthy adult?
60-100 beats per minute
What is the term for molten rock beneath the Earth’s surface?
magma
What is the speed of light in a vacuum?
300,000 kilometers per second
What is the pH value of a neutral solution?
7
What is the name of the process by which plants make their own food using sunlight?
photosynthesis
What is the name of the protein in red blood cells that carries oxygen?
hemoglobin
What scale is used to measure the magnitude of earthquakes?
Richter scale
What law states that for every action, there is an equal and opposite reaction?
Newton's Third Law of Motion
What is the process by which a solid turns directly into a gas?
sublimation
What part of the human brain controls balance and coordination?
cerebellum
Which part of the brain is responsible for regulating heartbeat and breathing?
medulla oblongata
What type of rock is formed by the cooling of magma or lava?
igneous rock
What is the name of the effect that causes the frequency of a wave to change when the source is moving relative to the observer?
Doppler Effect
What is the name of the element with the chemical symbol Au?
gold
What is the name of the molecule that carries genetic information?
DNA
What is the name of the process by which kidneys filter blood to form urine?
glomerular filtration
What is the name of the process where water cycles through evaporation, condensation, and precipitation?
water cycle