Test your friends to find out if you can replicate the placebo effect's incredible results.

Do you think heat can affect a plant's growth rate?

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

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

How powerful is the reaction between baking soda and vinegar? Find out here!

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

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

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

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

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

Could there be toxic chemicals lurking in the cupboards and closets of your home?

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

This science fair project idea explores how length affects the weight a bridge can hold.

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

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

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