Animal life - worms, snails, insects, spiders, crustaceans, and other invertebrates, fish, amphibians, reptiles, birds, and non-human mammals. Includes animal behavior, life cycles, body structure and function, animal genetics, classification of animals, animal breeding, farm animals, veterinary medicine, etc.
Human behavior, social and community relationships, psychology, sociology, anthropology, archaeology, ethnology, linguistics, learning, perception, urban problems, reading problems, public opinion surveys, educational testing, etc.
Study of nature and composition of matter and laws governing it - general chemistry, organic chemistry, inorganic chemistry, materials, plastics, pesticides, metallurgy, soil chemistry, physical chemistry, acids and bases, testing of products of a chemical nature, and the chemistry of life processes — enzymes, fermentation, metabolism, etc.
Geology, geography, meteorology, crystals, rocks, minerals, soils, volcanoes, weather, fossils, gravity, atmosphere, rivers, lakes, sea and oceans, earth resources, earth structure, early earth, and astronomy, including the sun, planets, solar system, earth and moon interactions, the stars, galaxies, the universe, comets, life on other planets, etc.
Fossil fuel energy, alternative energy sources, including wood, wind, solar, nuclear, biofuels, non-renewable and renewable energy sources, energy efficiency in appliances, furnaces, air conditioners, insulation, batteries, automotive and aeronautical engineering, vehicle development, ships and boats, flight, aircraft design, engines, cars, motorcycles, rockets, space travel, etc.
Technology projects that directly apply scientific principles to manufacturing and practical uses - civil, mechanical, chemical, electrical, photographic, sound, controls and thermostats, product testing of engineered products, thermodynamics, robotics, environmental engineering, computer hardware, software engineering, Internet networking and communications, graphics (including human interface), simulations/virtual reality or computational science (including data structures, encryption, coding, and information theory), statistics and probability, mathematics, etc.
Pollution (air, water, and land), pollution sources, waste disposal, measurement of air quality, soil and water contamination, bioremediation, ecology, ecosystem management, land resource management, pollution from farms and cities, herbicide and pesticide usage relative to species declines, acid rain, recycling, waste management, etc.
Interpersonal relationships, family issues and strengths, stress and crisis, food and nutrition, food and culture, dietetics, food preservation, experimental food science, textiles and clothing, child development, product testing of foods, clothing, household products, etc.
Medicine, dentistry, pathology, ophthalmology, sanitation, pediatrics, dermatology, allergies, speech and hearing, human genetics, human anatomy and physiology, holistic health and wellness, human chronic and infectious diseases, health and aging, exercise, human performance and athletics, fitness for living, products testing of sports equipment, health and beauty aids, etc.
Biology of microorganisms, bacteria, viruses, protozoans, bacterial genetics, yeast, molds, mildews, other fungi, antibiotics, animal and plant diseases, including agricultural diseases, soil microorganisms, etc.
Theories, principles, and laws governing energy and the effect of energy on matter - solid state, optics, acoustics, particle, nuclear, atomic, plasma, superconductivity, fluid and gas dynamics, electricity, magnets, simple machines, heat and heat transfer, motion, friction, gravity, pressure, sound, light, lenses, mirrors, buoyancy, levers, testing of products at physical science nature, etc.
Plant life - flowering and non-flowering plants classification, plant structure and function. Includes agriculture, agronomy, horticulture, forestry, paper production and wood products, plant genetics, hydroponics, genetically modified crops, effects of light on plants, flower preservation, plant communities, etc.
Research conducted by two or three students in any above category.