Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Here's a household scavenger hunt that shows kids the natural sources behind everyday objects...and builds reading skills, too!

This project examines whether and what associations exist between numbers and letters and colors.

Polymers remove oil from contaminated waters. The purpose of this science project is to test the effectiveness of a polymer in cleaning up an oil spill.

Help your child learn about animal classification with this fun and delicious activity.

For a fun family activity to introduce your child to genetics, have your child go on a search for dominant and recessive family genes!

Science fair project that determines which foods and drinks contain the highest amount of glucose.

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

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

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.

Free science fair project idea that examines the ergonomics of your environment. Redesign your living space to be better suited to your lifestyle.

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

This project explores whether the tempo of the background music we hear in a businesses is important to the environment and how customers move.

This science fair project idea explores if male or female humans are more likely to exhibit some form of color blindness.

Learn about the field of psychophysics and to learn about "Just Noticeable Differences."

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Help your child celebrate the summer and the sun by making a sandy seascape.

The objective of this science fair project is to determine the rate at which participants can respond to different patterns.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

Science far project which determines whether the material of a baseball bat affects the distance that the baseball will travel.

Multiple-choice test questions can be confusing. Here's a toolbox of tricks and strategies to help your teen become a multiple-choice master.

Illustrate the idea of light refraction with this exciting and mystifying experiment.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

This project explores how well couples convey complex emotions such as envy and pride to one another solely through the sense of touch.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

Children are imaginative story-builders. Create a shoebox habitat with your child to put those budding creative instincts to good use.

Learn how the focal length of a lens affects a magnifying glass's magnifying power in this cool science fair project idea for 8th grade.