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How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.

Science fair project which tests which antacids are most potent by measuring how well they neutralize the acid in lemon juice.

Lead your first grader on a nature walk ... with a scavenger hunt-style twist! They'll try to capture photos that correspond to paint chip colors.

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

In this science fair project caffeine will be extracted from Gunpowder Green Tea, illustrating the isolation of a naturally occurring product from a plant.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

Science fair project that examines the relationship between the size of a bubble and how quickly it falls. What is the correlation?

This experiment investigate whether children in different age groups learn better from a computer program or a human teacher.

This experiment investigates whether the Ranschburg Effect is observed more frequently in older or younger adults.

Science fair project that uses iodine solution to demonstrate how starch is turned into sugar when it is chewed in the mouth.

This science fair project idea models industrial oil spills and determines if they have an impact on wildlife living beneath the surface of the water.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

Check out this fun science project idea to get a better understanding of unstable isotopes and the process of radioactive decay of isotopes through modeling.

Your child grows a green thumb and flowers with this seed planting activity that also celebrates the 100th day of school!

In this science fair project, students evaluate the alleged pain-relieving properties of amber.

This science fair project idea demonstrates how our fingers prune when in water.

This experiment investigates whether left-handed test subjects have better memories than right-handed participants.

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

In this science fair project, students investigate how different colors influence appetite.

This experiment explores whether caffeine improves athletic performance.

Science fair project idea helps conceptualize probability. Compare probabilities and outcomes of cards drawn from a standard playing deck.

Discover whether people can distinguish what a person looks like just by listening to their voice.

Test whether spot magnets can help improve the symptoms of an injury.

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

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 middle school project examines the strength of horizontal versus vertical pointing eggshells.

Science fair project idea examines different techniques for memorization. Analyze results of memory tests to determine which method is most effective.