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

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Here's a fun, geometric puzzle activity that will capture your child's interest and strengthen his number awareness and graphing skills.

What's your problem? I'll show you my math if you show me yours! Critical thinking and computation skills are the focus of this strategic math card game.

Use a deck of playing cards to practice place value and other math concepts with your upper elementary child!

Exponents can be tricky to learn. Fortunately this game provides plenty of multiplication practice for your math student!

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

Here's a math, science, and social studies activity: help your kindergartener become a "coin archaeologist" by examining how different coins look and feel.

Do you think heat can affect a plant's growth rate?

Want a fun way to teach your kid to tell time? Making a plate clock is a great way for him to learn how to tell time in a way he'll actually find exciting.

Ordinary drinking straws are fun for drinking juice and even for spitballs when you're not looking, but also fabulous for learning first grade math.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

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

In this activity, have your second grader practice measuring by finding the height, weight, and length of their most treasured toy!

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

Build your child's vocabulary by exploring and discussing spatial relationships during everyday activities such as building, rearranging, and ordering.

First graders are learning basic addition and subtraction math facts. Practice in the sandbox with this fun outdoor math activity!

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

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.

Draw some educational value out of a summer stocked full of adventures!

Challenge your third-grader to sharpen her new math skills--and maybe do the planet a favor, too.

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.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

Here's a fun math-oriented arts and crafts activity for your preschool or kindergarten child: create a gumdrop topiary and practice counting along the way.

Try this card game to build math fact skills, like addition and subtraction, and have a great time, too!

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

In this activity, students build a house of sticks, just like the second little pig in the classic story, The Three Little Pigs. Then, they program an educational robot to push down the house, much like the wolf who “blows the house down.”

How powerful is the reaction between baking soda and vinegar? Find out here!

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.