Race to double numbers in this competitive card game. Try one-digit or two-digit numbers, or more!

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

Money is a difficult concept to grasp. Help your kid get the hang of it with this pocket change triple Venn diagram activity.

Sharing can be a challenge, and division doubly so! Practice halving numbers in this competitive card game.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Engage your third-grader in this version of the classic game and she will get lots of practice using mental math to solve addition and subtraction problems.

Help your child improve his coin counting skills in these two math games that have him race to reach $1.00.

Competitors go head-to-head only this time it's a race to figure out the lowest common multiple of two numbers; an important step to working with fractions!

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

Okay, engaging in a graphing activity may sound ho-hum, but if you use fun data, it changes the picture entirely.

Practice multiplication facts by playing baseball in this fun, third grade math board game.

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

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

Here's a math activity that uses coin riddles to help your third-grader improve his coin-counting and logical thinking skills.

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

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

This activity will help your child tackle those tricky fraction word problems by way of a hands-on method.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

Kids will get a kick out of shopping for discounted "kicks" with this creative math game that focuses on percentages.

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

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.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

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 simple experiment serves as an introduction to the greenhouse effect.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

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