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.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

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

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.

Determine if gender affects the ability to identify different smells.

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

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

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.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?

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

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

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

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

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

This simple project makes young children aware of their sense of smell and its capacity for providing them with information about their world.

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.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

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

Word color association is just a fancy way to talk about the way we connect colors with words.

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

This project makes young children uniquely aware of their sense of touch and its ability to alone give them information about the world around them.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

Take a dive into the candy jar with this yummy science experiment.

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

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.