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Student entries are grouped by the field science within which the project was performed. There are a total of 13 fields, or categories. These 13 are further grouped in to "Biological" and "Physical" science divisions. A 14th category is also available for projects that have been performed by a team of students. Each of these 14 categories are described below. These descriptions are the official description as presented in the International Rules Precollege Science Research: Guidelines for Science and Engineering Fairs  published by the Science Service.

Biological Sciences Division

Category Name

Description

Behavioral and Social Sciences

The science or study of the thought processes and behavior of humans and other animals in their interactions with the environment studied through observational and experimental methods.

Biochemistry

The study of the chemical substances and vital processes occurring in living organisms, the processes by which these substances enter into, or are formed in, the organisms and react with each other and the environment.

Botany

Study of plant life. Ecology, agronomy, horticulture, forestry, plant taxonomy, physiology, pathology, plant genetics, hydroponics, algae, etc.

Medicine and Health Sciences

The science of diagnosing, treating, or preventing disease and other damage to the body or mind.

Microbiology

The study of micro-organisms, including bacteria, viruses, prokaryotes, and simple eukaryotes and of antibiotic substances.

Zoology

Study of animals and animal life, including the study of the structure, physiology, development, and classification of animals. Animal ecology, physiology, animal husbandry, cytology, histology, entomology, ichthyology, ornithology, herpetology, etc.

Physical Sciences Division

Category Name

Description

Chemistry

The science of the composition, structure, properties, and reactions of matter, especially of atomic and molecular systems.

Computer Sciences

The study of information processes, the structures and procedures that represent processes, and their implementation in information processing systems. It includes systems analysis and design, application and system software design, programming, and datacenter operations.

Earth and Space Sciences

The study of sciences related to the planet Earth (Geology, mineralogy, physiography, oceanography, meteorology, climatology, speleology, seismology, geography, atmospheric sciences, etc.)

Engineering

The application of scientific and mathematical principles to practical ends such as the design, manufacture, and operation of efficient and economical machines and systems.

Environmental Sciences

The analysis of existing conditions of the environment.

Mathematics

The study of the measurement, properties, and relationships of quantities and sets, using numbers and symbols. The deductive study of numbers, geometry, and various abstract constructs, or structures. Mathematics is very broadly divided into foundations, algebra, analysis, geometry, and applied mathematics, which includes theoretical computer science.

Physics

Physics is the science of matter and energy and of interactions between the two. Astronomy is the study of anything in the universe beyond the Earth.

Team Projects

Study conducted by two or three students in any discipline.