 | | | Difficulty: Middle school |
| Comparing the effectiveness of different disinfectants against bacteria
The purpose of this experiment was to determine which disinfectant would most effectively kill bacteria.
The information gained from this experiment would help parents, health care providers, and food preparers to know which disinfectant to use to the best results for killing bacteria. |
| | Difficulty: Middle school |
| | | Difficulty: Middle school |
| Do spices in cooking kill microorganisms?
People in equador regions use spices in food preparation for thousands of generations. By using these spices, are they keeping themselves healthy by keeping their food "clean?" My objective is to find out if spices have the ability to kill food-spoilage microorganisms. And if they do, which spices are most effective and by how much? |
| | Difficulty: Middle school |
| Does bacteria become more resistant to an antibiotic when exposed repeatedly to it?
While antibiotics are very powerful in the cure of many bacterial diseases, some bacteria have developed ways to resist antibiotics. The extensive use of antibiotics (unfortunately including the over-prescription and misuse of these medications) has resulted in the evolution of bacteria that are not be killed by antibiotics and these bacteria once again threaten health and life. Diseases that were |
| | Difficulty: High school |
| Does bacteria content increase in a water bottle when the bottle is not properly washed.
My purpose is to show that the bacteria content does increase in a water bottle when it is not properly washed between uses. In the summer during swim team, I see my teammates fill the same water bottle every day for the whole season. They do not wash the water bottles as evidenced by the lip-gloss colors that don’t go away. The water bottles are stored in their swim bags with moldy dirty towel |
| | Difficulty: High school |
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| Does bacteria obtained from the feet of humans, rabbits or chickens grow the fastest?
I tested my hypothesis by taking samples of bacteria from the feet of a chicken, a human, and a rabbit, placing them in augers, and recording their growth over three days. I used a culture mix, water, a stove, a pot, nine petri dishes, graph paper, and samples of bacteria in my project. The full procedure went like this. I first mixed the water and the culture mix, then boiled it, and added some t |
| | Difficulty: Elementary school |
| | | Difficulty: Elementary school |
| Examining luminous bacteria
Biologists do not yet know why these bacteria produce light. One idea is that producing light gives these bacteria an advantage for survival. By glowing, they attract fish, which they then use as a host organism — the bacteria are able to live in the fish's body. These fish, which are attracted to the bacteria's light, pick up the bacteria and prevent them from settling on the bottom of the ocean |
| | Difficulty: Elementary school |
| How do electric fields affect E.coli bacteria?
With the result that application of an electric field apparently halted bacterial cell division and led to filamentous growth, we sought to understand better the cause of this phenomenon. (Recall that filamentous growth occurs when cell division—but not cell growth—is inhibited.) |
| | Difficulty: High school |
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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.
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