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

Category breakdown

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 9121–9150

CSEF · 2011

Hair Control

Product Science (Biological) (Junior Division Only)

Objectives/Goals The objective was to determine if a variety of hair samples treated with the Keratin Complex Treatment were stronger and would react less to humidity than hair samples not t…

CSEF · 2011

Hand Hygiene

Microbiology (General)

Objectives/Goals The purpose of my project was to find which brand of hand soap/sanitizer will kill the most bacteria. My hypothesis was that Dial soap would be the best and Bath & Body Work…

CSEF · 2011

Hand Washing vs. Sanitizer

Microbiology (Medical) (Junior Division Only)

Objectives/Goals That hand sanitizer is much more effective in reducing the amount of micro-organisms on hands than washing hands. Methods/Materials Materials 1. Warm running tap water 2. Di…

CSEF · 2011

Have You Seen My Master?

Mammalian Biology

Objectives/Goals I want to know if a dog's attention towards its owner is affected if the dog can't see its owner's face. Methods/Materials Materials 50 dogs with owners 1 person each dog is…

CSEF · 2011

Having a Hard Head Won't Save You

Applied Mechanics & Structures Third Award

Objectives/Goals My Goal is to test different combinations of shells and energy absorbing materials to find out which combination will absorb the most energy, and protect the head the best.…

CSEF · 2011

Having Fun Burning Calories

Mammalian Biology

Objectives/Goals The purpose of this experiment is to determine which of my typical daily physical activities burns the most calories. The three activities I chose are playing tennis, playin…

CSEF · 2011

H.E.A.R. Ham Radio Emergency Aerial Repeater

Electronics & Electromagnetics

Objectives/Goals My objective is to build a communications device that is inexpensive, reliable and easy to deploy during a natural disaster or terrorist attack. This device should also be a…

CSEF · 2011

Hemoglobin Assisted Laser Lipolysis

Mammalian Biology

Objectives/Goals Determine feasibility of a novel concept of non-invasive lipolysis with a 1064nm Nd:YAG laser, a skin penetrating wave-length, far better absorbed by hemoglobin then skin an…

CSEF · 2011

Hermit Crabs: More Than Meets the Eye

Zoology

Objectives/Goals My experiment was to find out if hermit crabs have a color preference. Methods/Materials Hermit crabs are nocturnal. During the day they seek shelter from the light. They fi…

CSEF · 2011

Homemade Electronic Whiteboard

Mathematics & Software

Objectives/Goals My goal was to determine if larger monitors would provide higher accuracy when used with an electronic whiteboard program. Methods/Materials Using an infared camera connecte…

CSEF · 2011

Honey I Shrunk the Bacteria

Microbiology (Medical) (Junior Division Only) Third Award

Objectives/Goals I am trying to find out which organic natural remedy (honey, olive oil or garlic) will kill Staphylococcus epidermidis and help sanitize the skin from any infections. Method…

CSEF · 2011

Hot and Cold

Materials Science (Junior Division Only)

Objectives/Goals The objective of this experiment is to prove that a white wood roof is a better thermal insulator than other possible materials and color combination in this experiment. Met…

CSEF · 2011

How Big Is Your Icosoikaihenagon?

Mathematics & Software

Objectives/Goals The purpose of this project is to find out if there is a relation between the area of any regular polygon and it's height. Methods/Materials First, all the areas were calcul…

CSEF · 2011

How Different Materials Insulate

Materials Science (Junior Division Only)

Objectives/Goals For my science fair project I chose to research how different materials insulate. My hypothesis was that water resistant materials, like fleece, would insulate the best. Met…

CSEF · 2011

How Do Computers Remember?

Electronics & Electromagnetics

Objectives/Goals I wanted to learn how computer memory works, and to build basic computer memory myself. Specifically, I wanted to find a way to make the binary logic to remember a single di…

CSEF · 2011

How Does Acid Rain Affect a Building?

Environmental Science

Objectives/Goals To conduct my investigation, I will use multiple liquids (acids, bases, and neutrals) to simulate rain. The liquids will represent the independent variable as it will be cha…

CSEF · 2011

How Does Acid Rain Affect Aquatic Plants?

Environmental Science

Objectives/Goals My objective was to determine the survival rate of aquatic plants after an acidic rain. My hypothesis was that the greater amount of acid in the tanks, the lower the surviva…

CSEF · 2011

How Does Fertilizer Affect Plant Growth?

Plant Biology

Objectives/Goals My objective was to determine how different types of fertilizer affect plants growth. My hypothesis was that the fertilizer urea would have the greatest effect on the plants…

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