Every California Science & Engineering Fair project Fairfolio holds: 17,387 entries across 24 years, with the abstract, category and awards the fair published for each one.
CSEF coverage: available historical abstracts for 2002–2019; award-listed projects only for 2021–2025, without abstracts and with explicit labels where titles were not published, except that most 2023 winners carry the abstract from CSEF's archived public showcase; public showcase abstracts for 2026. The 2020 fair was canceled.
Counts cover every year of this fair and use its own category labels, exactly as the source published them. Each one links to that category's CSEF projects.
17387 projects · showing 2191–2220
CSEF · 2019
Earth & Environmental Sciences
Objectives The purpose of my science project was to compare the permeability rates of various typical soils. I used gravel, poorly sorted sand, well sorted sand, and clay and I measured perm…
CSEF · 2019
Plant Biology
Objectives The objective of this project is to find the most suitable quantity of gibberellic acid to create the most growth in snow pea plants. Methods Gibberellic acid (powder form), digit…
CSEF · 2019
Product Science (Physical) (Junior Division Only)
Objectives The objective of my study is to determine if shading can increase the efficiency of an air conditioner. Methods Temperature sensors, PVC frame, heat lamps, and various shade mater…
CSEF · 2019
Microbiology (General)
Objectives The objective of this study is to determine the effects of varying amounts of nitrogen on cyanobacteria oil production. Methods Tested the the affect of nitrogen on cyanobacteria…
CSEF · 2019
Behavioral & Social Sciences Fourth Award
Objectives The purpose of this project is to determine whether or not parental limits affect middle school students smartphone addiction. My hypothesis is that the more limits parents give,…
CSEF · 2019
Mammalian Biology
Objectives My goal in completing this project was to determine the effectiveness of psyllium in reducing the amount of sand in horse s digestive system. Methods I collected manure samples fr…
CSEF · 2019
Cognitive Science (Junior Division Only) Honorable_mention Award
Objectives The objective of my project was to determine if stimulating the right brain improved reading speed and comprehension, for Dyslexic and non-Dyslexic students. Methods The experimen…
CSEF · 2019
Microbiology (General)
Objectives My project aims to discover if the amount of time food is in contact with various surfaces affect the amount of bacteria it collects. Methods I used many materials to conduct my s…
CSEF · 2019
Chemistry
Objectives My project involved creating electrolysis of water using a battery to examine the pH of the water after it was affected by electrolysis. My hypothesis was that if we separate the…
CSEF · 2019
Mammalian Biology Honorable_mention Award
Objectives The objective of this project is to utilize a dog's high sense of smell as the solution to creating an improved method of treating their wounds and injuries. By combining natural…
CSEF · 2019
Toxicology
Objectives The purpose of the project was to find a plant-friendly alternative to road salt (NaCl). Four types of salt were tested: calcium chloride (CaCl2), potassium chloride (KCl), ammoni…
CSEF · 2019
Plant Biology
Objectives Microplastics are small pieces of plastic found in the environment and are harmful to animals. I wondered if microplastics could affect plants. The objective of this project was t…
CSEF · 2019
Environmental Engineering
Objectives To determine if a soil wetting aid can reduce salt or sodium (Na) levels in different soil types (sandy, sandy- loam and clay soil) so that plants have more water and nutrients av…
CSEF · 2019
Environmental Engineering
Objectives The objective of this project is to study if different nut hulls (almond and walnut) affect water retention in soil. Methods Added ground up almond hulls and walnut hulls to loam…
CSEF · 2019
Mathematical Sciences Third Award
Objectives DBSCAN is an unsupervised learning algorithm that connects locally dense regions of data to form data clusters. This algorithm is frequently used for medical, engineering, and fin…
CSEF · 2019
Aerodynamics/ Hydrodynamics (Junior Division Only)
Objectives People want to drink and suck boba separately, but the simple wide straw has tea and boba together. This not only makes the customer unsatisfied, but it also causes issues with ch…
CSEF · 2019
Physics & Astronomy Honorable_mention Award
Objectives The Moon is devoid of a global magnetic field and atmosphere and is thus directly exposed to space plasma and solar radiation. Due to the emission of photoelectrons and collection…
CSEF · 2019
Alternative Energy (Junior Division Only)
Objectives The objective of this experiment was to see if using different fruits to make dye-sensitized solar cells affected the amount of voltage the solar cells produced. Methods A Nanocry…
CSEF · 2019
Mathematical Sciences First Award
Objectives Analyze the distribution of the iterations of the tangent map for most starting values, both measure- theoretically and topologically. Characterize sets of starting values whose t…
CSEF · 2019
Plant Biology
Objectives Late detection of drought stress in plants could lead to irreversible damage and low yield. Older methods of monitoring plant water status are destructive and only detects plant d…
CSEF · 2019
Mammalian Biology
Objectives The purpose of this project was to find what humans react to faster, sound or light and how the pitch or color affects the reaction time. Methods To administer the tests, the codi…
CSEF · 2019
Earth & Environmental Sciences
Objectives The objective of this study is to explore the relationship of different salinities on earth that contain different levels of carbon dioxide in the ocean due to global warming. Met…
CSEF · 2019
Environmental Engineering
Objectives Last year I tested the Escondido Creek water quality at different locations attempting to find the source of problems that the Escondido Creek is notorious for. I wondered if ther…
CSEF · 2019
Environmental Engineering
Objectives ABSTRACT Our science project is about protecting the environment by eliminating the use of plastic water bottles and minimizing water wastage, fertilizer runoff in gardening plant…
CSEF · 2019
Environmental Engineering
Objectives According to the World Health Organization, globally 1.8 billion people are drinking contaminated water. Distributed water, surface water, and ground water are contaminated due to…
CSEF · 2019
Microbiology (General) Honorable_mention Award
Objectives Spirulina platensis is a type of cyanobacteria also known as the blue-green algae. It contains a pigment called phycocyanin, which is made up of protein molecules, and is shown to…
CSEF · 2019
Biochemistry/ Molecular Biology Honorable_mention Award
Objectives The objective of this study is to record and analyze differences in the metabolic rate of yeast with varying levels of dissolved oxygen in the yeast suspension. Methods A gas coll…
CSEF · 2019
Plant Biology First Award
Objectives The aim of this research project was to analyze the effect of certain environmental changes on plant growth and their adaptation patterns for survival. This would help us understa…
CSEF · 2019
Physics & Astronomy Honorable_mention Award
Objectives Three-dimensional topological Dirac semimetals (3D-TDSM) have been increasingly studied in the areas of materials science and condensed matter physics due to their unusual three-d…
CSEF · 2019
Earth & Environmental Sciences
Objectives The goal of my project was to study the effect fires have on several of soils' characteristics. These are, organic matter content, water retention capabilities, and ability to sup…