Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.

Bring a little science to your third grader's Christmas as you test out his sense of smell by exposing him to common Christmas scents found in your kitchen.

Help your child build her very own science laboratory at home for experiments and science projects. This is a quick, easy, and fun educational tool!

Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.

Hone your child's skills of observation and take a look at forensic science for an interesting afternoon of exploration and detective work!

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

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

Did you ever drink spoiled milk? Find out whether whole milk spoils at the same rate as 2% and skim milk.

Discover the interactions of synthetic dyes and natural dyes on natural and artificially-made fabrics.

The aim of this science fair project is to study the mathematical construct called magic squares and create a unique magic square puzzle.

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

You and your child can create this beautiful butterfly mobile for hanging anywhere in the home (and learn about this magical creature while you're at it).

Have fun with bubbles and find out why there are bubbles in your tap water in this cool science fair project idea.

The objective of this science fair project is to determine whether drawing with the right side or the left side of your brain will produce a better picture.

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

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

This project will examine the relationship between wind velocity and direction and the distance a baseball travels.

Help your child make an attractive frozen holiday ornament to hang outside during winter months.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Help your middle schooler improve his observation skills by playing this simple observation and spatial memorization game.

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

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

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

This crafty activity provides a hands-on way for your child to illustrate how the trees look during each season of the year.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

This science fair project idea explores whether dogs do look like their owners.

Check out this fun science project idea on ecological succession and learn the main difference between primary and secondary succession.

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

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

In this experiment, recycled objects are separated to demonstrate how mixtures are made and the variance in the physical properties of their ingredients.