CSEF · 2005
Parallax
Mathematics & Software
Objectives/Goals I wanted to demonstrate how parallax works in measuring distances on a small scale, and to see if one method was more accurate than the other. My hypothesis was that the tan…
CSEF projects, 2002–2026
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.
Years
- 2026 725 projects
- 2025 232 projects
- 2024 272 projects
- 2023 241 projects
- 2022 268 projects
- 2021 246 projects
- 2019 801 projects
- 2018 795 projects
- 2017 814 projects
- 2016 845 projects
- 2015 859 projects
- 2014 911 projects
- 2013 891 projects
- 2012 879 projects
- 2011 881 projects
- 2010 870 projects
- 2009 870 projects
- 2008 863 projects
- 2007 864 projects
- 2006 865 projects
- 2005 855 projects
- 2004 837 projects
- 2003 848 projects
- 2002 855 projects
Category breakdown
- Chemistry 979
- Physics & Astronomy 967
- Plant Biology 953
- Biochemistry/ Molecular Biology 896
- Applied Mechanics & Structures 786
- Zoology 739
- Mammalian Biology 728
- Electronics & Electromagnetics 712
- Behavioral & Social Sciences 711
- Pharmacology/ Toxicology 669
- Mathematics & Software 640
- Environmental Engineering 605
- Microbiology 573
- Materials Science (Junior Division Only) 541
- Microbiology (General) 393
- Environmental Science 361
- Aerodynamics/ Hydrodynamics (Junior Division Only) 360
- Cognitive Science (Junior Division Only) 358
- Product Science (Physical) (Junior Division Only) 343
- Behavioral Sciences 318
- Product Science (Biological) (Junior Division Only) 282
- Environmental Science (Junior Division Only) 279
- Applied Mechanics/ Structures & Mechanisms/ Manufacturing 258
- Electricity & Electronics 232
- Alternative Energy (Junior Division Only) 221
- Toxicology 211
- Aerodynamics/ Hydrodynamics 208
- Earth Sciences/ Planetary Sciences/ Physical Environments 194
- Environmental Engineering (Junior Division Only) 175
- Earth & Planetary Sciences 161
- Mathematical Sciences 138
- Computational Systems & Analysis 129
- Microbiology (Medical) (Junior Division Only) 126
- Social Sciences (Junior Division Only) 108
- Structural Capability & Strength of Materials (Junior Division Only) 90
- Energy & Power (Junior Division Only) 82
- Earth & Environment (Senior Division Only) 75
- Earth & Environmental Sciences 71
- Human Biology (Junior Division Only) 54
- Mathematics & Computer Science 54
- Product Science (Junior Division Only) 50
- Pharmacology (Senior Division Only) 48
- Earth & Atmospheric Sciences (Junior Division Only) 47
- Toxicology (Junior Division Only) 44
- Computational Science (Senior Division) 40
- Biochemistry/ Molecular Biology (Senior Division) 36
- Behavioral & Social Sciences (Senior Division) 34
- Computational Systems & Analysis (Senior Division Only) 33
- Medicine & Physiology (Senior Division) 33
- Medicine & Physiology (Track 2) (Senior Division) 33
- Applied Mechanics (Junior Division) 32
- Applied Mechanics (Senior Division) 29
- Earth & Environment: Air/ Water 29
- Earth Science (Junior Division Only) 28
- Materials Science 28
- Cognitive Science 27
- Electronics & Electromagnetics (Junior Division) 26
- Product Science 26
- Environmental Engineering (Senior Division) 24
- Medicine & Physiology (Junior Division) 24
- Environmental Engineering (Junior Division) 23
- Environmental Engineering (Track 2) (Senior Division) 23
- Physics & Astronomy (Senior Division) 22
- Earth & Environmental Sciences(Senior Division) 21
- Earth & Environment: Soil/ Pollution 21
- Environmental Engineering (Track 2) (Junior Division) 21
- Behavioral & Social Sciences (Junior Division) 20
- Chemistry (Senior Division) 20
- Earth & Environmental Sciences (Track 2) (Junior Division) 20
- Alternative Energy 19
- Earth & Environmental Sciences (Junior Division) 19
- Plant Biology (Junior Division) 19
- Electronics & Electromagnetics (Senior Division) 18
- Product Science (Junior Division) 18
- Biochemistry/ Molecular Biology (Junior Division) 17
- Chemistry (Junior Division) 17
- Plant Biology (Senior Division) 17
- Zoology (Senior Division) 17
- Zoology (Junior Division) 16
- Environmental Engineering #2 15
- Microbiology (Junior Division) 15
- Applied Mechanics Structures 14
- Physics & Astronomy (Junior Division) 14
- Applied Mechanics 13
- Computational Systems: Medical 13
- Environmental Engineering #1 13
- Environmental Engineering: Pollution 13
- Alternative Energy (Junior Division) 12
- Cognitive Science (Junior Division) 12
- Mammalian Biology (Senior Division Only) 12
- Materials Science (Junior Division) 11
- Mathematical Sciences (Junior Division) 11
- Microbiology (Senior Division) 11
- Computational Systems & Analysis #1 9
- Mathematical Sciences (Senior Division) 9
- Animal Biology 7
- Computational Systems (Medical) 7
- Earth & Environment (Air/Water) 7
- Computational Systems & Analysis #2 6
- Computational Systems: Medical #2 6
- Earth & Environment (Soil/Pollution) 6
- Product Science (Physical) 6
- Computational Systems: Medical #1 5
- Product Science (Biological) 5
- Microbiology (Medical) 4
- Earth & Environmental Sciences (Senior Division) 1
- Mammalian Biology (Senior Division) 1
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.
Projects
17387 projects · showing 14491–14520
CSEF · 2005
Parthenogenesis: Optimizing Virgin Birth in Sea Urchins
Zoology
Objectives/Goals This experiment was designed to test the most effective measures to parthenogenically activate sea urchin eggs of the purple sea urchin (Strongylocentrotus Purpuratus). The…
CSEF · 2005
Persistent Holes in Non-Newtonian Fluids
Aerodynamics/ Hydrodynamics
Objectives/Goals The objective of this project is to induce persistent holes in non-Newtonian fluids and to understand the dynamics of fluid behavior under the application of shear force. Me…
CSEF · 2005
Petros "rock", Oleum "oil" Petroleum: Oil from Rocks
Earth Sciences/ Planetary Sciences/ Physical Environments
Objectives/Goals The purpose of this project is to see how the hydraulic conductivity of water and crude oil is different. I conducted two separate set of experiments, and compare the data c…
CSEF · 2005
Phase III - A Study of the Effect of pH on Mitochondria: A Practical Application with Daytona (Bush) Beans
Biochemistry/ Molecular Biology
Objectives/Goals To determine which solution, acidic, neutral, or basic, will affect the growth of Daytona (Bush) Beans most positively. Methods/Materials Daytona (Bush) Beans were exposed t…
CSEF · 2005
Phase V: Cost-Effective and Pollution-Free Natural Recycling of Impure Water
Environmental Engineering
Objectives/Goals The objective was to develop a method to naturally recycle impure water in an economic, environmentally friendly, easily maintainable, and efficient process. Methods/Materia…
CSEF · 2005
pH: It's to DYE for!
Chemistry
Objectives/Goals My project was to determine the optimum pH for dyeing 100% cotton cellulose fabric using fiber reactive dyes. I believe that the high pH dye solutions will produce results w…
CSEF · 2005
Photochemistry Ammonium Oxalate and Iodide
Chemistry
Objectives/Goals Objective: Does the source of light cause different outcomes in a photochemical reaction? Investigate the effect of ammonium oxalate and iodide on different sources of light…
CSEF · 2005
Photoperiodism in Mung Bean Plants
Plant Biology
Objectives/Goals This project deals mostly with photoperiodic responses of mung bean plants when exposed to amounts of light to dark varying from 8 hours of artificial light and 16 hours dar…
CSEF · 2005
Physical Attractiveness
Social Sciences (Junior Division Only)
Objectives/Goals My objective was to figure out how a pre-teen's or teenager's own physical features affect his/her choices on what's attractive on the opposite sex. Methods/Materials Firstl…
CSEF · 2005
Phytoremediation of Zinc
Plant Biology
Objectives/Goals The objective of my study was to see if mustard plants could be used for phytoremediation of Zinc. Methods/Materials To study whether zinc can be phytoremdiated, mustard pla…
CSEF · 2005
Piaget's Conservation
Behavioral Sciences
Objectives/Goals Piaget said that 6&7 year old children were able to conserve number. My objective was to find out if 50% or more of 6&7 year old children conserve number. Methods/Materials…
CSEF · 2005
Pigment Separation in Allium cepa (Red Onions) using Circular Paper Chromatography
Chemistry
Objectives/Goals The purpose of this project was to determine which of the eluting solutions of petroleum ether, acetone, and water will separate the color pigments in red onions. Methods/Ma…
CSEF · 2005
Planet Planaria
Pharmacology/ Toxicology
Objectives/Goals The question was whether caffeine increases or decreases the total growth of planaria during their regeneration period, than if they were to be in their usual pond water. Th…
CSEF · 2005
Plant Genetic Function Study through Virus Induced Gene Silencing
Biochemistry/ Molecular Biology
Objectives/Goals To determine if it is possible to dysfunction a gene through gene silencing, or in our case virus induced gene silencing. We believe that gene silencing will occur. Methods/…
CSEF · 2005
Polar Auroras: Is the Season the Reason?
Earth Sciences/ Planetary Sciences/ Physical Environments
Objectives/Goals Before modern-day science, different cultures tried to explain what Polar Auroras were. Eskimos thought that polar auroras were the souls of deer, seals, salmon, or whales.…
CSEF · 2005
Popcorn Consumption and the Impact of Film Genre
Social Sciences (Junior Division Only)
Objectives/Goals The objective of my project was to determine whether the genre of a motion picture has a measurable impact on a moviegoer's popcorn consumption. Methods/Materials I reviewed…
CSEF · 2005
Post 2003 Wildfires: A Study on Regrowth of Native and Non-native Plants
Environmental Science (Junior Division Only)
Objectives/Goals This project studied the effect of hillside topography on the regrowth of Adenostoma fasciculatum, a native chaparral shrub known as Chamise, following the October 2003 wild…
CSEF · 2005
Potential Celecoxib-induced Cerebrovascular Signaling Alterations in HIV Patients
Pharmacology/ Toxicology
Objectives/Goals The blood-brain barrier (BBB) is the first line of defense against potentially harmful drugs or toxins passing from the blood stream into the brain. Human immunodeficiency v…
CSEF · 2005
PPAR Delta Crystallography
Chemistry
Objectives/Goals The peroxisome proliferator-activated receptor delta (PPAR delta) is a ligand dependent protein which regulates the transcription of genes related to lipid and cholesterol m…
CSEF · 2005
Practical Use of Nyquist Sampling Theorem in Image Reduction
Mathematics & Software
Objectives/Goals The objective of this experiment is to find out the minimum number of pixels of a digital picture necessary to maintain the basic features of an image. As an extension of my…
CSEF · 2005
Predicting Material Failure: Correlation between Deformation Luminescence and Hysteresis
Applied Mechanics/ Structures & Mechanisms/ Manufacturing
Objectives/Goals Material failure prediction would revolutionize modern engineering. Currently, scientists and commercial systems are unable to measure the impact of stress and, most importa…
CSEF · 2005
Predicting Phenomenon
Social Sciences (Junior Division Only)
Objectives/Goals The purpose of this science experiment was to study group accuracy, and how a group#s average compares to expert judgment. Methods/Materials Four containers were filled with…
CSEF · 2005
Project Canon Cannon: A Study of Projectile Range
Applied Mechanics/ Structures & Mechanisms/ Manufacturing
Objectives/Goals This project is an endeavor to discover the relationship between the amount of pressure put in the tank of an air cannon and the distance that the projectile flies. In my ex…
CSEF · 2005
Project Payphone
Social Sciences (Junior Division Only)
Objectives/Goals The objective is to determine if and why people answer ringing public payphones. I believe that people will only answer if they are attempting to use the phone and find it r…
CSEF · 2005
Proliferation and Extracellular Matrix Remodeling in Tumor Cells HT-lo/diss and HT-hi/diss
Biochemistry/ Molecular Biology
Objectives/Goals There are two objectives: 1. To determine if the HT-lo/diss (45a) and the HT-hi/diss (47a) tumor cells are in fact different in extracellular matrix (ECM) remodeling and 2.…
CSEF · 2005
Propane vs. Gasoline
Applied Mechanics/ Structures & Mechanisms/ Manufacturing
Objectives/Goals The objective of this project is to determine if propane is a cleaner and more efficient energy source than gasoline for an internal combustion motor. Methods/Materials I co…
CSEF · 2005
Propel Yourself! Do Blade Angles and Number of Blades on a Propeller Change the Speed of a Hovercraft?
Aerodynamics/ Hydrodynamics
Objectives/Goals This investigation was aimed to find out whether blade angles and the number of blades of propellers affect the speed of hovercrafts. Different combinations on blade angles…
CSEF · 2005
Protein Electrophoresis on Flying and Non-Flying Birds
Biochemistry/ Molecular Biology
Objectives/Goals The objective of my project is to use electrophoresis to see if there is an evolutionary relationship between birds that fly, fly short distances, and birds that do not fly.…
CSEF · 2005
pTT Influence on Genetic Change of Human Fibroblasts and Prokaryotes Exposed to UV Light
Biochemistry/ Molecular Biology
Objectives/Goals This project will attempt to establish cultures of human fibroblasts and example Gram negative Escherichia coli and Gram positive Staphylococcus epidermitis, subculture the…