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

Determine whether magic salt is more effective at melting snow than regular salt. Pour one ounce of salt over the ice cubes, compare the melt downs.

Measure temperature change over time using a variety of insulation materials. Be creative with insulation materials: scarves, yarn, socks, feathers, oil, etc

Here's a preschool color collage activity to help your child work on their sorting skills, and create a beautiful addition to the refrigerator gallery.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

Help your kindergartener practice counting from one to ten with this fun outdoor activity. Make a "My Backyard Counting Book" to review counting to ten.

Forget store-bought dyes this Easter: color your Easter eggs with natural dyes made with ingredients from your own kitchen in this 1st grade activity.

This experiment will explore the best way to create a perfect soft-boiled egg.

Help your kindergartener learn to manage a telephone with this homemade keyboard that also helps kids practice letters and numbers.

In this simple and social activity, children use size comparison skills to find objects in nature that are bigger, smaller, longer, and shorter.

Determine how effective animal camouflage is by simulating it in an indoor and outdoor setting.

Demonstrate the capillary function in plants by adding food coloring to glasses of water. Slice stalks of celery and leafy tops. Compare color of leaves

Introduce the idea of measuring weight to your preschooler or kindergartener by making a fun and easy-to-use bungee scale to weigh household objects.

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

Making metric conversions is a difficult concept to master. Get in some extra practice by playing this Tic-Tac-Toe game with your learner.

Learn how to make a paper snowflake with these simple instructions. Help your child learn how to make a paper snowflake with only paper and scissors.

Explore the math concept of probability with your fifth grader on "lucky" St. Patrick's day this year!

Determine if âdouble dippingâ chips really spreads more germs than dipping only once per chip.

Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?

Help your kids fall in love with nature by making a simple clay bird bath. Set it up in your yard and watch the animals venture in for a sip of water.

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

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.

Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).

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

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