What kind of fabric holds dye best? How can you improve a dyed fabric's colorfastness? In this colorful project, test colorfastness using mordants and bleach.

This science fair project idea determines whether volunteers remember more information presented orally or visually or kinesthetically.

Science fair project in which you will build your own algae photobioreactor which will meet the physiological requirements of algae for maximum growth.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Use simple materials to build a "worm hotel" with your kindergarten soil scientist...and see what worms really do all day.

Plant a mini herb garden and teach your child about science and nature.

This science fair project idea explores whether the types and brands of faucet filters are relevant to their performance.

How to test for acids and bases? In this activity you and your child can make your own indicator from red cabbage!

Discover which absorbent material is the best; the Shamwow, paper towels, or cotton towels.

This experiment evaluates if the lighting in a room affects the speed at which test subjects perform mental tasks.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

This science fair project idea produces varying pitches of sound.

Explore the properties of light and color using photographic filters. Take pictures of color spectrum, compare results of different filters.

This project explores ways to prevent static electrical shocks.

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

Science fair project that determines whether brain size is correlated with intelligence.

This science fair project idea raises awareness of a real ecological issue.

This project examines germs and their spread in households. The goal is to learn how to stop the spread of germs and other diseases.

Learn the chemistry and physics of the brain, how our nervous system work. Demonstrate that the brain is an electrical and chemical machine.

This science fair project idea examines various dead zones and investigates the cause and how it can be fixed.

This science fair project idea explores the fastest average speed a human can talk.

This science fair project compares the abilities of men and women to understand subtle communication through body language.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

This simple experiment serves as an introduction to the greenhouse effect.

Plants help keep a house cool! This article includes step-by-step instructions for completing this fun and interesting science experiment.

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.

Create your own light bulb and test filaments of different thicknesses to see which keeps the bulb burning for the longest time.

Help your kindergarten scientist discover relative size, density, and buoyancy with this fun, pumpkin science project!

Check out this fun science fair project idea to explore fun facts about fruit juices and learn why do juices turn bad in the fridge.