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

Determine whether a hot liquid cools off faster when liquid is added before or after a two minute wait.

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

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.

Examine the connection between temperature and chemiluminescence.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

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.

This science fair project idea deals with the qualities of shade on a sunny day.

This science fair project idea quantifies exactly how accurate the cricket thermometer is.

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 second-grade math card game.

This science fair project idea determines if a particular chemical has an effect (increase or decrease) on the heart rate of Daphnia.

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

This science fair project idea explores whether dry ice will cool a beverage faster than wet ice.

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?

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.

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.

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!

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!

Determine the differences between various bicep exercises, both in terms of how much muscle exertion they create and how they affect your heart rate.

Explore joule heating and resistance vs. temperature with this cool electricity science fair project that gets kids melting ice cubes with resistors.