Read the following list of science fair questions.
Reading this list may help you develop you own
science fair questions. You may choose one of the
questions listed, or you may develop you own
question.
Bacteria
Which type of hand soap most effectively kills bacteria?
How does mouth wash have an effect on the amount of bacteria in
your mouth?
Which mouth wash is the most affective at killing bacteria?
Where in a home do bacteria flourish?
Where do bacteria live in your bathroom?
Protists
What types of protists inhabit fish tank water?
How fast do protists reproduce?
Plants
To what extent does the duration of light affect plant growth?
How does the color of light affect the growth of plants?
What is the effect of temperature on the germination of bean
seeds?
What is the effect of spacing on the growth of radish seeds?
How does magnetism affect the height of bean seeds?
What is the effect of fertilizer on corn seeds?
To what extent does pH affect the germination of rye grass?
To what extent does insecticide affect the growth of plants?
What is the effect of different soil mixtures on plant growth?
What is the effect of planting depth on the germination of seeds?
To what extent do various concentrations of salt water affect plant
growth?
How does acid rain affect leaf development?
How does talking to bean plants affect their growth?
What is the effect of detergent on the germination of bean seeds?
What is the effect of gravity on the roots of a plant?
What is the effect of temperature on the ripening of a banana?
How do the germination rates of different seeds compare?
Fungi
How does moisture affect the growth of bread mold?
Which type of bread (white or wheat) decomposes at that fastest
rate?
How does moisture affect the rate of food decomposition?
How does refrigeration affect the rate of food decomposition?
How do different liquids affect the respiration rate of yeast?
Animals
How does temperature affect the activity of mealworms?
How do different colors affect the activity of mealworms?
To what extent does amount of food affect the population size of
mealworms?
How does the different color of light affect the behavior of
earthworms?
How does the intensity of light affect cricket behavior?
What is the effect of background color on the color of a
chameleon?
What is the affect of temperature on the behavior of goldfish?
How do different levels of salinity affect brine shrimp?
What is the effect of moisture on yard snails?
How do vibrations affect the behavior of ants?
What is the effect of height above ground on the attraction of
birds to a feeder?
What is the effect of caffeine on blood pressure?
How does vision affect sensation of taste?
What is the effect of age on reaction time?
How does your gender affect sensations of touch?
To what extent does age affect the sensation of temperature?
What is the effect of sleep on respiration rate?
What is the effect of skipping/running on respiration rate?
What is the effect of left/right handedness on reaction time?
To what extent does the amount of light affect acuity of vision?
How does my pet spend its day?
How does a gorilla (or other zoo animal) spend its day?
Ecology
How extensive is the biodiversity in my backyard?
How extensive is the biodiversity at Dacula Park?
Which species of bird visit my bird feeder?
What will you find under a rotting log?
Does decomposition occur more quickly with insects or no
insects?
Genetics
What percentage of the middle school population has dominant
verses recessive genetic traits?
What percentage of the middle school population has the three
different fingerprint types?
What percentage of the population has a genetic disorder?
How does a normal individual in terms of __________ compare
to an individual with a certain genetic disorder?
Consider This:
1. The science fair questions listed on
this page may not be well stated. You
may need to reword the question. Use
your scientific judgment.
2. You may have to purchase supplies
for your project. For example, if you
want to grow bacteria, you may have to
buy petri dishes with agar. Supplies can
be purchased online from a company
called Carolina Biological. Go to goggle
and type in "Carolina Biological" to
access this website. The specific web
address for this site is:
https://www2.carolina.com