All Science Fair Projects

Over 1000 FREE Science Fair Project Ideas!

How much bacteria do our hands contain?
Although we can't always see them, microorganisms are present in almost all environments. Many can be grown in the laboratory on plates containing a solid, nutrient-rich medium (agar plates). After several days, a single bacterial cell grows into a population of bacterial cells that is visible to the naked eye. This population of cells is called a microbial colony. In this exercise we will test fo
Difficulty: Elementary school
Insects and the germs they carry
This science fair project was done to determine the amount of germs carried by different types of insects. The experiment was done using ants, cockroaches, flies and beetles.
Difficulty: High school
Solar Water Disinfection
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
Difficulty: High school
Sunlight and bacteria growth in aquatic environments
This science fair project was done to ascertain the relationship between the exposure of water to sunlight, and the amount of bacteria in the water. The science fair project experiment was performed on tap water, drain water and water from a lake.
Difficulty: High school
The Effect of Acids and Alkalis on Bacterial Growth
The purpose of this experiment is to find out whether bacterial growth is inhibited by either strong acids or strong alkalis, or even both. It is important for us to know about bacteria inhibition in order to develop more efficient antimicrobials.
Difficulty: Middle school
The effectiveness of household cleaning agents for killing bacteria
This science fair project was done to find out how effective common household cleaning agents are against bacteria. The science project experiment involved using water, dishwashing liquid, Dettol and Clorox.
Difficulty: Middle school
What is the effect of Chlorox on bacteria
The purpose of this experiment was to compare the bacterial content before and after the use of Clorox wipes on the inside and outside door handles of restrooms. I became interested in doing a project on bacteria because I am interested in a career in medicine, biology or microbiology. In addition my mom has taught me about avoiding bacteria in restrooms and encouraged me to use a paper towel
Difficulty: High school
What is the effect of ultra violet light on bacteria?
My objective was to see what the affect was of ultra-violet light on bacteria. I hoped that the bacteria would get killed, and wanted to see a decrease in bacteria colonies.
Difficulty: Middle school
What types of acne medication are most effective against acne caused by bacteria?
The objective is to determine which acne medications are the most effective in inhibiting the growth of Propionibacterium acnes, over-the-counter or prescription.
Difficulty: Elementary school
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