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 2641–2670
CSEF · 2019
Microbiology (General)
Objectives Observe how the location of a stall relative to the entrance affects its bacterial contamination. Higher bacterial contamination indicated a higher number of uses in each stall. M…
CSEF · 2019
Earth & Environmental Sciences
Objectives Eutrophication, the excessive richness of nutrients in a body of water, is a growing problem in lakes, rivers, creeks, and coastlines. It is caused by the runoff of nitrates and p…
CSEF · 2019
Earth & Environmental Sciences
Objectives The purpose of this experiment is to prove that smaller sized particles will take longer to fault than larger sized particles in reverse faulting. It was hypothesized that if smal…
CSEF · 2019
Toxicology
Objectives The objective of this study was to discover a concentration of sodium chloride in water that would negativity effect Pennisetum clandestinum without harming other turf grass. Meth…
CSEF · 2019
Applied Mechanics & Structures
Objectives The goal of this project is to find what pressure I should have in myth rear shock on my mountain bike that will allow more hang time and distance traveled. Methods Full suspensio…
CSEF · 2019
Chemistry Fourth Award
Objectives We aim to develop methods to detect the amount of leaf pigments. We will then use the methods to study the effect of temperature and light exposure to the pigments in picked leafy…
CSEF · 2019
Mammalian Biology Honorable_mention Award
Objectives The objective of this study was to test if blinding people temporarily would cause a measurable improvement in hearing. Methods I used The Mimi Hearing app to to test participants…
CSEF · 2019
Mammalian Biology
Objectives The objective of this experiment was to determine the relationship between tongue type and the ability to taste the chemical PTC. Methods 71 volunteers were given a piece of PTC p…
CSEF · 2019
Applied Mechanics & Structures Honorable_mention Award
Objectives Skyscrapers are one of the most vulnerable buildings to suffer in an earthquake. The moving ground causes the building to vibrate at destructive levels. The objective of my projec…
CSEF · 2019
Microbiology (General)
Objectives The purpose of this experiment was to determine how alcohol-based hand sanitizer and alcohol hand wipes compared in reducing bacteria from hands. Methods There were ten subjects.…
CSEF · 2019
Earth & Environmental Sciences
Objectives My project was to determine the effect of varying air pressure on the fluidity of different types of sand. I believed that the finer sand would fluidize more easily than the more…
CSEF · 2019
Physics & Astronomy
Objectives My objective was to discover if the viscosity of liquid impacts the effectiveness of a simple hydraulic system. Methods In this project, I used 4 liquids of different viscosities,…
CSEF · 2019
Materials Science (Junior Division Only)
Objectives Our goal was to find the optimal retting conditions for the outer layer of flax to break with the least force in order to accelerate production. We hypothesized that if increased…
CSEF · 2019
Applied Mechanics & Structures
Objectives The purpose of this experiment was to find out which weight would make the flywheel spin the longest. Methods Timer, 3D printer, computer, camera, tachometer, various fishing weig…
CSEF · 2019
Earth & Environmental Sciences
Objectives The purpose of this experiment was to determine 1) if wildfire smoke affected grapes grown in Lake County and 2) if this smoke affected people s opinions of fermented grape produc…
CSEF · 2019
Microbiology (General)
Objectives D-limonene, a known neurotoxin to the worm Eisenia fetida, can be used to model neurodegenerative diseases in annelids. When exposed to acute d-limonene, the worms exhibit physica…
CSEF · 2019
Earth & Environmental Sciences
Objectives The purpose of my experiment was to determine if more air pollution particles were collected depending on locations and heights. I do believe that locations and heights will chang…
CSEF · 2019
Behavioral & Social Sciences
Objectives My objective is to determine if, when a survey taker forms an interpretation of what a survey is testing, they will give different responses than they would if they did not think…
CSEF · 2019
Environmental Engineering
Objectives The purpose of this experiment was to determine if Bacillus subtilis could degrade High-density and Low- density polyethylene in Freshwater, Brackish water, and Ocean water enviro…
CSEF · 2019
Product Science (Physical) (Junior Division Only)
Objectives The objective of the experiment was to determine the extent of metal contamination in drinking water when using metal pipes. The question was: What is the effect on drinking water…
CSEF · 2019
Toxicology
Objectives The question being tested in my project was what effects does microwave radiation have on different organic materials and life. One objective and goal of the experiment were to vi…
CSEF · 2019
Mammalian Biology
Objectives The object of this study was to find out if music can change heart rate and blood pressure. Methods To conduct this experiment I needed an Equate Digital Blood Pressure Monitor, I…
CSEF · 2019
Plant Biology Honorable_mention Award
Objectives The goal of this project is to examine the effects of simulated microgravity by using a rotating container that simulates perpetual falling on Raphanus raphanistrum (Champion vari…
CSEF · 2019
Environmental Engineering
Objectives The objective is to analyze different types of methods to minimize hillside erosion after a forest or hillside fire and define which method is the most effective in reducing sedim…
CSEF · 2019
Cognitive Science (Junior Division Only)
Objectives The goal of our project was to determine how short term stress affects memory and performance in Middle and High School students, based on their heart rate. Methods 2 Pulse monito…
CSEF · 2019
Toxicology
Objectives My goal was to determine the impacts of UV radiation on C elegans growth rate, as a model for its impacts on C elegans overall genetic health. Methods I used C elegans on E coli a…
CSEF · 2019
Earth & Environmental Sciences
Objectives There have been multiple wildfires around the state of California in the past few years. I wanted to see if the ash from the wildfires affect the nutrient and pH levels of the soi…
CSEF · 2019
Chemistry
Objectives The purpose of this project is to see how water can be used as a renewable energy source by testing how efficient a cobalt-based catalyst will be in producing molecular oxygen fro…
CSEF · 2019
Behavioral & Social Sciences Third Award
Objectives People's worldviews, opinions, thoughts, characteristics, and feelings are often reflected in the way they write. By looking at which kinds of words increased/decreased in their f…
CSEF · 2019
Microbiology (General)
Objectives The goal was to see if a substance world be dirtier if it stayed on the ground longer. Methods Bananas, saltine crackers, petri dishes, swabs, and a heat lamp. I put a banana on t…