Science Fair Ideas:
Does holding a mirror in front of a fish change what the fish does?
What color birdseed do birds like best?
What is the soil in my schoolyard made of?
What kinds of things do magnets attract?
How can you measure the strength of a magnet?
Which dish soap makes the most bubbles?
Which dissolves better in water – salt or baking soda?
Can things be identifies by just their odor?
With which type of battery do toys run longest?
Does the viscosity of a liquid affect its boiling point?
Do liquids cool as they evaporate?
Do sugar crystals grow faster in tap water or distilled water?
What common liquids are acid, base or neutral?
Which dish soap makes the longest lasting suds?
Which type of oil has the greatest density?
Does water with salt boil faster than plain water?
Does baking soda lower the temperature of water?
Can you separate salt from water by freezing?
Will water with salt evporate faster than water without salt?
Which brand of diaper holds the most water?
Which kind of cleaner removes ink stains best?
What kind of glue holds two boards together better?
How much salt does it take to float an egg?
What kind of juice cleans pennies best?
What brand of raisin cereal has the most raisins?
Do different types of apples have the same number of seeds?
Do bigger seeds produce bigger plants?
Will bananas brown faster on the counter or in the refrigerator?
Which grows mold faster – moist bread or dry bread?
How much of an apple is water?
How much of an orange is water?
Which brand of popcorn pops the most kernels?
Which brand of popcorn pops fastest?
How does omitting an ingredient affect the taste of a cookie?
Which cheese grows cold the fastest?
Can you tell what something is just by touching it?
Does the human tongue have definite areas for certain tastes?
Is using two eyes to judge distance more accurate than using one eye?
INSECTS and CREATURES
Do ants like cheese or sugar better?
On which surface can a snail move faster; dirt or cement?
What foods do mealworms prefer?
Do mint leaves repel ants?
Which travels faster – a snail or a worm?
Does an earthworm react to light and darkness?
Does surrounding color addect an insect's eating habits?
Do different kinds of caterpillars eat different amounts of food?
How far does a snail travel in one minute?
How much can a caterpillar eat in one day?
What holds two boards together better – a nail or a screw?
Which paper towel is the strongest?
Can the design of a paper airplane make it fly farther?
Do wheels reduce friction?
PEOPLE and HUMAN BODY
In my class who is taller; the boys or the girls?
Does anyone in my class have the same fingerprints?
Do children’s heart rates increase as they get older?
Can you use a strand of human hair to measure air moister?
Does heart rate increase with increasing sound volume?
Do boys or girls have a higher resting heart rate?
Do taller people run faster than shorter people?
Who can balance better on the balls of their feet – boys or girls?
Does exercise affect heart rate?
How accurately can people judge temperatures?
How far can a person lean without falling?
In my class, who has the biggest feet – the boys or the girls?
Which student in class has the greatest lung capacity?
In my class, who has the smallest hands – the boys or the girls?
Does a ball roll farther on grass or dirt?
How long will it take a teaspoon of food dye to color a glass of still water?
Do all objects fall to the grounf at the same speed?
What type of line carries sound waves best?
Can the sun's energy be used to clean water?
Which metal conducts heat best?
Can same-type balloons withstand the same amount of pressure?
What materials provide the best insulation?
What keeps things colder; plastic wrap or aluminum foil?
Does the size of a light bulb affect its energy use?
For how long a distance can speech be transmitted through a tube?
Does the color of a material affect its absorbtion of heat?
Does sound travel best through solids, liquids, or gases?
Can you see better if you limit the light that gets to your eye?
Does the length of a vibrating object affect sound?
How far can a water balloon be tossed to someone before it breaks?
Does the shape of a kite affect its flight?
Does an ice cube melt faster in air or water?
Which liquid has the highest viscosity?
Will more air inside a basketball make it bounce higher?
Do suction cups stick equallly well to different surfaces?
Do all colors fade at the same rate?
Does a baseball go farther when hit by a wooden or metal bat?
Using a lever, can one student lift another student who is bigger?
Which gets warmer – sand or dirt?
PLANTS and SEEDS
Do the roots of a plant always grow downward?
Can plants grow without soil?
Does temperature affect the growth of plants?
Can plants grow from leaves?
Does a green plant add oxygen to its environment?
What percentage of corn seeds in a package will germinate?
What plant foods contain starch?
Does a plant need some darkness to grow?
What are the effects of chlorine on plant growth?
Will adding bleach to the water of a plant reduce fungus growth?
Does sugar prolong the life of cut flowers?
Does the color of light affect plant growth?
Do plants grow bigger in soil or water?
How much weight can a growing plant lift?
Does it matter in which direction seeds are planted?
Does a plant grow bigger if watered by milk or water?
Do living plants give off moisture?
Can you tell where sound comes from when you are blindfolded?
Do watches keep time the same?
Can you tell time without a watch or a clock?
Does a bath take less water than a shower?
Does warm water freeze faster than cool water?
Which materials absorb the most water?
What materials dissolve in water?
What type of soil filters water best?
Do different types of soil hold different amounts of water?
Does the color of water affect its evaporation?
Which way does the wind blow most frequently?
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