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This fun game helps children learn to estimate the most basic unit of time--a minute--without a clock.

Expand on your childâs time-telling skills by helping him learn how an analog clock and a digital clock correspond.

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

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.

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

Head out to the driveway, ball in hand, for a bouncing challenge. Then use those results to make a colorful graph that lets your child compare results.

Add these fun chocolate Groundhog Day cupcakes to your holiday desert recipe repertoire! They're fun to make with your kids and a delicious winter snack.

Try this fun addition game with your second grader! Arrange playing cards to find the largest possible sums.

If your 2nd grade child asks for time often, encourage him to read time on his own by talking about time throughout the day.

Work on simple addition and finding even numbers in this first grade math card game.

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

Time is an abstract concept that's difficult to grasp. But waiting for the turkey to come out of the oven on Thanksgiving is a concretely yummy experience.

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.

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?

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.

Using simple materials found around your home, you can reinforce the static electricity concept by helping your child build a simple device with zapping power!

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

Show your kindergartener how to count to 100 by tens, and he'll get an adorable cheerio necklace in the process!

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.

Gather the neighborhood children together and practice graphing with this backyard tournament!

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

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 St. Patrick's day, stretch your third grader's social studies and math skills with this fun, cooperative learning game.

Make the abstract nature of time and money easier for your kid to understand with some fun ideas that focus on these concepts.

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.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

Transform your kitchen table into a winter wonderland with a cookie and cocoa party that looks freshly dusted with snow.

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?