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

This activity is based on the popular card game, Slapjack. It's rip-roaring fun, and it reinforces the concepts of odd and even.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

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

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

In this activity, your child will get a review of addition, subtraction, multiplication and division using classic domino pieces.

Make math fun for your child by turning it into a game and challenging him to beat the calculator with this cool math race!

This simple bookmaking activity will introduce and reinforce alphabet and number recognition skills that have been taught at home or learned in preschool.

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.

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.

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

Put your kid in charge of her own survey! She'll poll her relatives and friends, collect information, and then create a colorful chart to display her findings.

These handmade Christmas treat cups are perfect for house parties, school celebrations, and holiday bake sales.

Engage your children with this fun fall activity that integrates math and science. First, your child will excavate to find leaves. Next, they'll examine them to determine the colors. Then, your child will graph their findings.

Counting with one-to-one correspondence is an important kindergarten math skill. This simple activity turns it into a play-anywhere game.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

Is your third grader bombing around on a bike these days? Here's a way to put all that fun time together with some math learning, too.

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

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.

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

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?