The total mass-energy of a closed system remains constant.
LAW OF CONSERVATION OF MASS-ENERGY
100
The scientific study of insects.
ENTOMOLOGY
200
The science that deals with the atmosphere and its phenomena, such as weather and climate
METEOROLOGY
200
It is the largest muscle in the human body.
GLUTEUS MAXIMUS
200
Au
GOLD
200
The energy E of a particle is equal to its mass M times the square of the speed of light c, giving rise to the best known physics equation in the Universe: E = M c2.
EINSTEIN'S MASS-ENERGY EQUATION
200
The scientific study of birds
ORNITHOLOGY
300
The science of the forms of life that existed in prehistoric or geologic periods.
PALEONTOLOGY
300
It is the location of the smallest bone in the human body.
EAR
300
RADIUM
Ra
300
A body continues in its state of constant velocity (which may be zero) unless it is acted upon by an external force.
NEWTON'S FIRST LAW OF MOTION OR LAW OF INERTIA
300
The scientific study of fish
ICHTHYOLOGY
400
The study of the universe beyond the Earth's atmosphere
ASTRONOMY
400
This is the secretion of the salivary glands.
SALIVA
400
LEAD
Pb
400
For a wavefront traveling through a boundary between two media, the first with a refractive index of n1, and the other with one of n2, the angle of incidence theta is related to the angle of refraction phi by n1 sin theta = n2 sin phi.
REFRACTION LAW
400
The scientific study of animal behavior.
ETHOLOGY
500
The science of the origin, history, and structure of the Earth, and the physical, chemical, and biological changes that it has experienced or is experiencing
GEOLOGY
500
This organ of the human body is responsible for the balance and equilibrium.
EAR
500
Sb
ANTIMONY
500
A body that is submerged in a fluid is buoyed up by a force equal in magnitude to the weight of the fluid that is displaced, and directed upward along a line through the center of gravity of the displaced fluid.