Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

Make sourdough bread...and learn some colonial history and modern science in the process!

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

Grow borax crystals and get your child excited about Earth science with this crafty science experiment.

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

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

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.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

This science fair project idea provides evidence that air is everywhere and takes up space.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

It's food. It's Thanksgiving tradition. And guess what: Cranberry Sauce is also science! Try our simple recipe/experiment.

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

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.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.