Here's a hands-on activity you can do with your fourth-grader to practice measurement and directly apply the concept of area.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

In this matching activity, your kid will match the clock faces representing analog time with the numeric readings representing digital time.

This fun activity encourages your child to develop their skills in not only taking measurements, but also in working with the measurements themselves.

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

Delay your child's sugar overload, and develop his critical thinking skills, by doing some "sweet sorting" of his Halloween treasures!

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

Math Facts Game: A mix of musical chairs and Twister meets math. Nipping multiplication problems in the bud was never this much fun!

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

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

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!

Try this recipe with your child and explore Ethiopia through one of its dietary staples: injera, or flat bread!

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!

This little chick is so cute that your child will want to make a whole flock to call her own.

For a fun activity that takes the dull out of decimals, show you child how to gain a better understanding of decimals...as dollar amounts!

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

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

This activity will further your child's ability to interpret graphs and apply math skills in a real-world situation.

Thanksgiving is a time to be with loved ones. It's also a time to chow down! Need help in the kitchen? There's no better helper than an avid fourth grader.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

Make math fun and easy with this activity that challenges your child to use their addition and multiplication skills to win a race!

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.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

Getting kids to memorize their times tables can be worse than pulling teeth. Sweeten the deal with this activity that combines math and sugar.

Does your fifth grader need a study buddy for geometry? Forget about a tutor. Help him make his own geometry dictionary!

Here's a super fun game to get in some place value practice with your child!

Draw your own beautiful mandala with this easy technique that ensures symmetrical results every time!