Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

Help kids tap into their inner inventor by teaching them how to make peanut butter through trial, error, and lots of taste testing!

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

This science fair project examines how seeds hitchhike on animals and clothing.

This project determines what category of person is most likely to be ticklish.

Using a toy race car kids create a visual model of the Doppler Effect.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

This project examines whether people's taste perception is influenced by what they see.

This science fair project idea determines what household items are good conductors of electricity.

This science fair project idea examines whether boys and girls differ in reflexes.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

Determine if gender affects the ability to identify different smells.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

People have favorite flavors, but what about ants? Which ant food is the most popular?

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

This project examines what types of objects burn and which burn faster and cleaner.

This science research project challenges students to think of more effective lobster farming methods.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

This science fair project idea determines the most effective method of preserving food.