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This science fair project idea determines which method of hand cleansing is the most effective.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

Check out this fun leaf chromatography science fair project idea for middle school students and discover the hidden pigments in leaves.

In this science project idea learn about working of different types of smoke detectors and find out which one is the most effective for you.

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

Explore the effect of wind speed on the burning rate of a candle.

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

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

Which sunscreen is most effective at blocking the sun's harmful UV rays? Test the SPF of various sunblock brands in this cool science project!

Before digital cameras, before Polaroids, there was the original pinhole camera. Build a pinhole camera and see what true vintage photography looks like!

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

This science fair project idea explores whether a person's ability to see under very dim lighting conditions diminishes with age.

Check out this fun science fair project idea to explore the process of diffusion in a cell and learn the difference between osmosis and diffusion.

Science fair project that creates fog using bottles of hot and cold water.

The goal of this science fair project is to demonstrate the effects of oxidation by writing a message in invisible ink made from lemon juice.

This experiment investigates the relationship between the temperature of a candle and its burn rate.

Science fair project that illustrates the properties of black holes in space.

Design a livable building that functions without electricity. Consider necessities, comforts and entertainment. Build a scale model of your design.

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

Your kindergartener will have a blast helping you craft these fun, eco-friendly potted place cards.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.