What are some science fair ideas?

Answer 1

• Does music affect on animal behavior
• Does the color of food or drinks affect whether or not we like them
• Where are the most germs in your school? (more info.)
• Does music have an affect on plant growth
• Which kind of food do dogs (or any animal) prefer best
• Which paper towel brand is the strongest?
• What is the best way to keep an ice cube from melting
• What level of salt works best to hatch brine shrimp
• Can the food we eat affect our heart rate?
• How effective are child-proof containers and locks.
• Can background noise levels affect how well we concentrate
• Does acid rain affect the growth of aquatic plants?
• What is the best way to keep cut flowers fresh the longest
• Does the color of light used on plants affect how well they grow
• What plant fertilizer works best?
• Does the color of a room affect human behavior
• Do athletic students have better lung capacity
• What brand of battery lasts the longest?
• Does the type of potting soil used in planting affect how fast the plant grows
• What type of food allow mold to grow the fastest
• Does having worms in soil help plants grow faster
• Can plants grow in pots if they are sideways or upside down
• Does the color of hair affect how much static electricity it can carry (test with balloons)
• How much weight can the surface tension of water hold
• Can some people really read someone else's thoughts
• Which soda decays fallen out teeth the most?
• What light brightness makes plants grow the best?
• Does the color of birdseed affect how much birds will eat it
• Do natural or chemical fertilizers work best
• Can mice learn (you can pick any animal)
• Can people tell artificial smells from real ones?
• What brands of bubble gum produce the biggest bubbles
• Does age affect human reaction times?
• What is the effect of salt on the boiling temperature of water
• Does shoe design really affect an athlete's jumping height
• What type of grass seed grows the fastest
• Can animals see in the dark better than humans

Answer 2

For 1st and 2nd graders you'd get a 1000s of ideas but in 3rd I made a magnetic experiment using a magnet (you can get 3 of them of different kinds to show how the different types oaf magnets), a nail, a plastic toy and other things to show which is attracted by magnet and which isn't. You can even show that the south and the north pole attracts each other and vice-versa. But the like poles do not. Got an A+.

Then in 7th I made a water cycle using cardboard. small glass tub and bottle to make rain.

For 9th I am going to make a working model of generating electricity using a train.