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

This science fair project idea examines whether boys and girls differ in reflexes.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

Use applied math to model orbital eccentricity in this cool science fair project for 7th grade.

In this cool science fair project, kids apply basic algebra to learn how to make a PVC pipe instrument while exploring concepts like frequency and resonance.

The objective of this science fair project is to examine the cleanliness of salad preparation techniques.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

Measure temperature change over time using a variety of insulation materials. Be creative with insulation materials: scarves, yarn, socks, feathers, oil, etc

Is there really such a thing as healthy gum? Students will learn what factors in chewing gum contribute to healthy teeth in this exciting science fair project.

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

Study structure of the lens found in the human eye and determine whether it is concave or convex. Prepare a ray diagram, formulate hypothesis.

How do crystals form? In this science fair project, students will use three different saturated solutions to see how different minerals form crystals over time.

Thermometers are how we measure temperature, and we've all heard the terms "centigrade" and "Fahrenheit" tossed around, but what do they really mean?

The purpose of this science project is to determine which stimulus, gravity or water, will cause the greatest growth response in a plant.

Determine how effective animal camouflage is by simulating it in an indoor and outdoor setting.

Help your kindergarten scientist understand the concept of surface tension with this simple science experiment.

The garden is the perfect place to practice math and science with preschoolers. Get digging (and counting, sorting, observing at the same time!)

Show your teen how to analyze the nutritional value of her favorite meals. She may be surprised to find out how healthy--or not--her favorite foods are!

A fun, life science sxperiment idea idea involving strategies for keeping birds away from crops using a distress call. What kind of distress call works best?

Science fair project that guides you through how to test the humidity in the environment using a homemade psychrometer.

Learn about endothermic and exothermic reactions and energy exchange by experimenting with temperature change in chemical reactions.

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

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.