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.

912 projects · showing 61–90 CSEF — clear fair filter Environmental Engineering — clear category filter Clear all

CSEF · 2026

PotBot- Your Personalized Watering Assistant

Environmental Engineering (Track 2) (Junior Division)

For my project, I am creating a moisture detection device that I decided to name PotBot, that lets you know when your plant needs to be watered! Every year, 35% to 50% of houseplants die fro…

CSEF · 2026

Saving Homes from Water

Environmental Engineering (Junior Division)

Hi, my name is Rhian Welling-Farmer. I decided to do my science fair on saving homes from natural disasters involving water, like floods. I chose this idea because I was inspired by a docume…

CSEF · 2026

Soil Saver 3000: The Future of Composting

Environmental Engineering (Track 2) (Junior Division)

Abstract Objective Food waste decomposing in landfills is a major contributor to global warming because it releases harmful greenhouse gases, especially methane. Composting offers a sustaina…

CSEF · 2026

Turning Waste Into Nutrition

Environmental Engineering (Track 2) (Junior Division)

Objective: My objective was to find which type of decomposing yard waste would grow the tallest plants. Materials and Methods: I baled three different types of green waste: fallen leaves, gr…

CSEF · 2026

Underwater Coral Reef Restoration Eel-Bot

Environmental Engineering (Track 2) (Junior Division)

Throughout the world coral reefs are dying out due to changes in water temperature and pollution, ruining one of the most important ecosystems in terms of food, resources, and products for h…

CSEF · 2026

Water-Smart Soil Using Biodegradable Polymers

Environmental Engineering (Junior Division)

This project investigates how three different biodegradable hydrogels - Agar, HydroxyEthyl Cellulose (HEC), and a blend of Agar + HEC can help absorb and retain water, slow evaporation and s…

CSEF · 2026

Wax, Water, and Phase Change

Environmental Engineering (Track 2) (Senior Division)

As concerns about climate change and fossil fuel consumption grow, developing sustainable ways to store and use renewable energy has become increasingly important. Many home heating systems…

CSEF · 2026

Worming Our Way Through Plastic

Environmental Engineering (Track 2) (Senior Division)

The rapidly increasing production of disposable plastic products has overwhelmed the world’s ability to effectively manage plastic waste. This experiment investigated which of two types of w…

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