Science Fair Project Ideas

Want to do a science fair project related to water quality? We can help! Below are links to different experiment ideas that are about water quality.

Some of the experiments require scientific equipment like Dissolved Oxygen or Nitrogen kits. Our main office in Logan or many of the extension offices throughout the state have equipment that you can check out. We will also help answer any questions you have. Good luck!


Difficulty Ratings:


Difficulty Range







Links with * do not give a full experiment layout. Instead they provide ideas for hypotheses and experiments that students can create.

I'm Trying to Breathe Here! Dissolved Oxygen vs. Temperature

Difficulty: 6

Household Water Usage*

Difficulty: 7

Runoff and Fertilizer Use*

Difficulty: 7

Using Daphnia to Monitor Water Toxicity

Difficulty: 7

Too Much of a Good Thing? Study the Effect of Fertilizers on Algal Growth

Difficulty: 5

How Does Soil Affect the pH of Water?

Difficulty: 5

Something's Fishy About That Fertilizer

Difficulty: 2

It's Raining, It's Pouring: Chemical Analysis of Rainwater

Difficulty: 5

Flash Floods*

Difficulty: 6-8

Water pH

Difficulty: 3-5

Questions: St. Johns River Water Management District

-This site provides science fair project ideas, basic information on science fairs, scientific method, tips, and links to helpful background information sites.

Ideas for Science Fair Projects on Surface Water Quality Topics for Middle School Students and Teachers

-Created by the EPA, this website provides a little background information and possible options for science fair projects based on surface water quality.