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.

Build basic projector out of ordinary materials. Create several color transparency slides, demonstrate your creation.

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.

Show your middle schooler how a quick whirl of spinach in the blender will reveal the cobwebby "stuff"--or DNA--of life!

Show your preschooler how to make a print of a butterfly using her hand as a tool--a great way to stimulate her sense of touch.

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.

Blend art and science in this hands-on activity that shows your kindergartener how primary colors combine to make secondary colors.

This science fair project idea shows how a vibrating object transfers energy to whatever it touches.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

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

This conservation of energy demonstration shows why the first hill is the highest on a roller coaster. Learn more about potential and kinetic energy!

This science fair project idea shows kids how to grow mold and whether mold grows better in dry or moist conditions.

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.

This project explores differences in people's reactions to images in color and images in black and white.

This project analyzes people's emotional responses to images in painting vs similar images in photographs.

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

High school kids learn about fruit fly ethology in this cool lab that determines fruit fly movement and behavior under different conditions. Check it out.

Magnets may hold up papers on the fridge, but is it the paper that attracts them? Find out more with this kindergarten science investigation.

This experiment will explore whether fractals really repeat themselves infinitely.

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

This experiment will explore if and where fractals can be found in the natural world.

How fast is the wind blowing? This science experiment provides step-by-step instructions to help you answer this question.

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

Evaluate if people are more influenced by video or audio advertising.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

Determine which factors promote the greatest memory interference. Administer test, time how long it takes subjects to complete different tasks.