Search past science fair projects

38,465 real projects from ISEF, the Canada-Wide Science Fair, JSHS, AJAS, the Calgary Youth Science Fair and the California Science & Engineering Fair — searchable by meaning, and filterable by fair, year, category and award.

40 projects · showing 31–40 2007 — clear year filter Environmental Engineering — clear category filter Clear all

CSEF · 2007

Water Purification in Emergency Situations

Environmental Engineering Fourth Award

Objectives/Goals This project examines various methods to purify water to make it drinkable, and analyzes which method is the most efficient. Methods/Materials In this experiment, water is c…

CSEF · 2007

Water Purification: The Green Way

Environmental Engineering Honorable_mention Award

Objectives/Goals Many contaminants can enter the water system through various ways, greatly endangering human health. Excess iron can cause chronic fatigue, cancer, and heart disease, while…

CSEF · 2007

Water Purification with Solar Energy

Environmental Engineering Honorable_mention Award

Objectives/Goals The purpose of my project was to purify water using only solar energy. I chose to use a solar still based on the El Paso Solar Project model. Methods/Materials The El Paso S…

CSEF · 2007

Which Is the Best Compost?

Environmental Engineering

Objectives/Goals Which is the best ratio of leaves and greens to make the best compost, in term of high mass percent of nitrogen, carbon and low mass percent of water, in normal condition? M…

CSEF · 2007

Wind Energy

Environmental Engineering

Objectives/Goals In my project, I used motors and fan blades turned by wind to generate energy. For my first variable, I tested different motors and saw how adding gears would affect the amo…

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