Your child will learn more about coins and their denominations as he's asked to identify similar coins.

This science fair project idea deals with the qualities of shade on a sunny day.

Your preschooler will not realize she's practicing her counting skills while playing with this interactive cereal abacus!

Help your kindergartener learn to manage a telephone with this homemade keyboard that also helps kids practice letters and numbers.

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

Explore the math concept of probability with your fifth grader on "lucky" St. Patrick's day this year!

Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

This project examines the concentration of dissolved oxygen in water, with and without oil.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

Give your child some practice with even numbers, while creating a cute Christmas keepsake. Create this skip counting book.

Help your kindergartener practice counting from one to ten with this fun outdoor activity. Make a "My Backyard Counting Book" to review counting to ten.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.

This science fair project idea identifies clouds as a means of predicting the weather.

Help your child identify numbers with this fun preschool math art activity! Explore different textures and colors as he learns numbers.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

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

Determine whether fresh vegetables have more calories or less calories than canned vegetables.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

Do this fun activity that uses stickers to help your kindergartener with counting, basic addition, and one-to-one correspondence.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

This St. Patrick's day, stretch your child's social studies and math skills with this fun, cooperative learning game.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

The Kindergarten Personal Record Book makes measurement fun & active! Kids record their vital statistics from head to toe using unusual tools like paper clips.

Help your kindergartener review shapes - and build early reading skills - with this creative book project.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

In this activity, your child will learn to name the numbers from 1 through 5 and they'll practice their counting skills.