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

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

This basketball project explores the best way to make the perfect shot every time.

This science fair project investigates why the number of visible stars changes from place to place.

Help your child create her very own invention just like Leonardo da Vinci as she develops her critical thinking skills and lets her imagination soar!

Get excited for St. Patrick's Day by making a Celtic knot.

In this activity, your child will reflect on one role model in their life or research one historical figure that has displayed perseverance. Then, they will create a slideshow presentation or poster that defines and illustrates perseverance.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

When you're studying the Mayflower, numbers can be an important part of the history...and a great chance to practice elementary math!

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

In this version of the classic card game, students will gain an understanding of equivalents and may not even realize it's a math review!

Learn all about balance and motion as your child designs a corn maze!

Here's an enjoyable at-home activity that gives your child step-by-step practice identifying the important parts of an article and organizing his ideas.

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

Toss playing cards into boxes while you practice addition and multiplication with decimals in this fun, fifth grade math game.

Help your child get organized for the school year ahead and establish some important skills that will help him for years to come!

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

Have your child observe, measure and record the amount of space objects occupy, and you'll have an inside space explorer on your hands in no time!

Being a kid is hard work. Soothe stresses and calm fears with this DIY Zen garden -- all you need is sand, stones and a shoebox.

This science fair project idea produces sounds by creating vibrations using different objects.

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

Celebrate the holidays by making sufganiyot, or fried jelly donuts. This Hanukkah recipe is great for kids learning about the Festival of Lights.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Here's an easy project: create a homework helper bookmark so your fourth grader can write down assignments and mark the pages he needs to read.

Sweet potatoes lend a creamy texture and peppery seasoning gives a spicy kick in this fall hash recipe.