MATHEMATICS
MUSIC
ART
SOC. SCIENCE
ANIMALS
100

A value in mathematics

It's an equivalent to "No"

Negative
100

Classical female singing voice that has the highest vocal range of all

Soprano
100
Metallic color commonly used to represent value
Gold
100
Person trained in the command of a spacecraft
Astronaut
100
Pertaining to lizard family, has ability to camouflage with large range of colors
Chameleon
200

Most commonly used with a plus sign

and a basic operation of arithmetic

Addition
200
Designing and planning of dance
Choreography
200

Hand operated shearing (cutting) tool

consists of metal blades

Scissors
200
Rise and fall of sea levels
Tide
200
Largest mammal inhabitant of the ocean
Whale
300

Finding solutions.

Normally expressed with the equal sign =

Solve
300
Classical composer, pianist famous for the "Ode to Joy"
Beethoven
300
Science of images captured through image, light and film
Photograph
300
Optical instrument used in Astronomy
Telescope
300
Flightless bird inhabiting the Southern Hemisphere
Penguin
400
Branch of math that consists of basic operations
Arithmetic
400
Live music performance in front of an audience
Concert
400
Human visual perception of visible spectrum through the human eye
Color
400

Field of science devoted to "Earth" description

Study of the lands, the features, the inhabitants

Geography
400
Carnivorous mammal inhabiting the Artic circle
Polar Bear
500
Mathematical object, count or measure
Number
500
Main string instrument used in classical music
Violin
500
Mathematical  value used to calculate measure or size 
Dimension
500
Gravitational trajectory of an object such as a planet
Orbit
500

Insect that emerges from a caterpillar or larvae and has completed metamorphosis from worm form

Butterfly