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100

The study of outer space

Astronomy

100

The study of rocks and minerals

Mineralogy
100

The study of animals

Zoology

100
The study of plants

Botany

100

The study of man

Anthropology

200

The study of organisms in relation to their environment

Ecology

200

The study of building design

Architecture

200

The study of heredity

Genetics

200

The study of climate and weather 

Meteorology

200

The study of psychological disorders

Psychiatry

300

The study of human prehistory

Archaeology

300

The study of the structure of living things

Anatomy

300

The study of human speech

Linguistics

300

The study of the earth's physical divisions into mountains, seas, etc.

Geography

300

The study of the composition of substances and the changes that they undergo

Chemistry

400

The science of preparing and dispensing drugs 

Pharmacy

400

The study of the manner in which organisms carry on their life processes

Physiology

400

The study of the origin and development of languages

Philology

400

The study of beliefs regarding morality, beauty, existence, etc.

Philosophy

400

The study of religion

Theology

500

The study of sound

Acoustics

500

The study of insects

Entomology

500

The study of childhood and its diseases

Pediatrics

500

The study of light and its relation to sight

Optics

500

The art of tracing designs and taking impressions of them

Lithography

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