This science fair project idea determines if family members can recognize one another using only the sense of smell.

Determine if gender affects the ability to identify different smells.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

This science fair project has kids conduct a blindfolded taste test to determine how smell influences our ability to taste foods.

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

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

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.

This science fair project idea investigates whether plants can survive being frozen.

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

The science project fair idea explores the interaction between your nose, mouth, and brain when tasting a new food or drink.

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

This science project allows students to study the psychology of happiness.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

Learn whether writing things down really makes things easier to remember.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

This science fair project idea explores whether talking to a plant will help it grow.

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

This science fair project idea investigates how color affects temperature.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

This basketball project explores the best way to make the perfect shot every time.

This science fair project idea demonstrates that plants give off water.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

In this project, a magnet is used to collect iron from breakfast cereals.