This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

This science fair project idea investigates how magnetism can defy the force of gravity.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

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

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

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.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

Do different types of oil mix or stack? Find out in this science fair project idea!

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

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

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

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Discover whether cold or hot water from the faucet will boil faster on the stove.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.