All Science Fair Projects

Over 1000 FREE Science Fair Project Ideas!

Search Browse Forum Coach Links Editor Help Tell-a-Friend
Top 20 Science Project Searches
Science Fair Coach
What do science fair judges look out for?
Project title Solar Water DisinfectionFeatured science projectScience project video
Difficulty Level High school
Project page  Click here to view this science project

Description
To determine the relationship between the degree of disinfection of drinking water (infused with a bacteria culture) and varying degrees of opacity of the container 

Instructions preview
1. For this experiment, the independent variable is the opacity of the bottle. The dependent variable is the quantity of E.Coli colony present in the water. The controls for this experiment are the source of water used, the amount of sunlight exposed to and the amount of E.Coli used in each bottle. 2. Prepare 7 clean PET bottles for the experiment. 3. Using the sharp object, scratch the outer surface of 4 bottles to four different levels of opacity. They should be about 25% opaque, 50% opaque, 75% opaque and close to 100% opaque. 4. Scratch another bottle to .....
View our all-time most popular science projects
You might also like these projects
  1. Extreme temperatures and its effect on the growth of bacteria
  2. Bacteria in poultry meat
  3. How dirty are your dental retainers?
  4. Bacteria resistance to antibiotics
  5. Insects and the germs they carry
  6. Bacteria in water coolers
  7. Sunlight and bacteria growth in aquatic environments
  8. Does bacteria content increase in a water bottle when the bottle is not properly washed.
  9. What is the effect of Chlorox on bacteria
  10. Does bacteria become more resistant to an antibiotic when exposed repeatedly to it?
Search science fair projects Browse science fair projects
Kits for your science fair projectsScience fair bookScience kit search tool
Science kits, science lessons, science toys, maths toys, hobby kits, science games and books - these are some of many products that can help give your kid an edge in their science fair projects, and develop a tremendous interest in the study of science. When shopping for a science kit or other supplies, make sure that you carefully review the features and quality of the products. Compare prices by going to several online stores. Read product reviews online or refer to magazines.
Copyright (C) 2020 All Science Fair Projects.com. All Rights Reserved. Site
All Science Fair Projects Homepage
Search | Browse | Links | Handbook | From-our-Editor | Books | Privacy | Disclaimer| Copyright notice