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

Okay, identifying place value isn't as fun as eating ice cream, but with a few index cards and a competitive spirit, it can be disguised a game!

Create a fun hands-on game to practice long division, using magnetic numbers on a fridge.

This pyramid card game is a fun way to help your child learn addition and subtraction. Best of all, itâs quick to set up and easy to play.

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 simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Have some fun with your first or second grader, looking for creative ways that 100 cents can make $1.00!

Homemade Halloween treats make great party foods for an All Hallow's Eve get together. These four homemade Halloween treats are scary-good.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

First graders spend lots of time learning double digit numbers. Here's a "green" way to build skills and have some old time family fun, too.

Get your child math and science savvy with this fun outdoor classification game. Using chalk, your child will classify what she sees in the natural world.

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

Take the spookiness out of spiders with this web-making activity! Your child will practice talking about and creating shapes in this Halloween craft, and learn about spiders along the way.

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.

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

Make this delectable custard, meringue, and graham cracker pie will give your fifth grader practice with measurement and get him interested in the kitchen.

Your child will need to combine his sporty hand-eye coordination skills with his math skills to become the bullseye king.

Celebrate Dia de los Muertos by baking pan de muerto. In this 5th-6th grade activity, your child will explore another culture while learning about baking.

Use familiar household items and decorations to turn estimation into a fun game!

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

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

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.

This activity is a great starting point for practicing mental math because it is quick, easy and involves only simple addition facts.

Learn to recognize symmetry by playing this game! The more you play, the better you'll get at recognizing this special characteristic many playing cards have.

It's important to be able to add and subtract quickly and accurately, and this activity is the perfect way to practice.

In this hands-on craft project, kids will make an analog clock of their own, and then use it to learn how to tell time.

How many steps long is the hallway? Kids put their graph-making skills to work as they make a step map of their own house.

This simple experiment serves as an introduction to the greenhouse effect.

Give your second grader a chance to get his feet wet with measurement before he moves onto the more complicated stuff by trying this activity with him at home.