This science fair project idea investigates the difference in reaction times between boys and girls.

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 fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Use pepper and soap to discover some fun facts about the properties of water.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

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

Challenge your learner to design and build a city of their own in this creative engineering activity.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Start your toy engines -- this is going to be a fast and friction-filled race!

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

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

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

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

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.