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.

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

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

How do organic materials become soil? This science experiment measures what materials biodegrade.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

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

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

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

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

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

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

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

In this fun experiment, we'll find out how color affects heat absorption!

This science fair project idea investigates if fats add to the flavor of food.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

This science fair project idea explores substances that cause a bubble to last longer.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

This science fair project idea determines if the color of light affects the growth of plants.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.