This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

Test the combustion of different types of woods.

In this science experiment, test the pH of soil surrounding a gas station to determine if gas stations have a negative effect on the environment.

Explore properties of liquids and how temperature and salinity effect surface tension of liquids in this fun- filled science fair project idea.

Do your laundry and your science project simultaneously! This science fair project investigates whether the color of a garment affects the time needed to dry.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

Create your own light bulb and test filaments of different thicknesses to see which keeps the bulb burning for the longest time.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

Determine how good we are at direct and indirect observation.

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

Check out this cool science fair project idea to explore various aspects of projectile motions like mass, angle and distance.

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

Evaluate the efficacy of different pain management techniques.

This science fair project idea studies how talking on a cell phone affect driving?

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

Determine which environment keeps an ice cube frozen for the longest duration. Inspect and record your observations when cubes melt.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

Which sunscreen is most effective at blocking the sun's harmful UV rays? Test the SPF of various sunblock brands in this cool science project!

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

Determine whether people can actually taste the difference between âhealthyâ cookies and the traditional version.

This science fair project determines if the allelopathic chemical produced by the black walnut tree biodegrades immediately or persists over several days.

This project investigates several commercially decaffeinated tea types (black, green, oolong, white) for the presence of detectable traces of caffeine.

This science fair project compares the allelopathic chemical produced by the Black Walnut tree to a commercial herbicide in stopping the growth of a shrub.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.