see whether all liquids evaporate at the same rate. In other words, does water evaporate at the same rate as juice?

Hone observational skills and introduce the basics of data interpretation with this data gathering activity all about the different colors people wear.

Familiarize your preschooler with the concept of numbers one through five and counting with this hands-on activity.

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.

Help your child apply his math skills the next time you cook a family meal similar to one you'd buy at a restaurant.

Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.

Does your preschooler like cereal? Explore numbers with everyday objects and food with this fun counting activity.

Compare and order numbers and introduce mathematical inequalities in this fun math card game.

This measurement activity uses feet to compare objects, but not the ones found on rulers and measuring sticks...the feet on your child's own body!

In this science fair experiment, high school students determine if all proteins denature at the same temperature.

Create clear sound shakers so your preschooler can observe and compare the different sounds that objects make!

Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.

Practice multiplication facts and geography at the same time in this fun third grade math card game.

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

Did you ever drink spoiled milk? Find out whether whole milk spoils at the same rate as 2% and skim milk.

In this simple math activity, your young learner will compare two types of Valentine's Day candy using a Venn diagram.

Your child will practice her counting and number recognition as she matches printed numbers to the same number of repetitions of a simple design.

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.

The garden is the perfect place to practice math and science with preschoolers. Get digging (and counting, sorting, observing at the same time!)

A hands-on guessing game that teaches kids to recognize different coins. First graders will learn their money and their math at the same time!

Encourage your child to compare and contrast a wide variety of autumn-themed items by weighing various objects and recording their findings.

Do this fun activity that uses stickers to help your kindergartener with counting, basic addition, and one-to-one correspondence.

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

Does your child love toy cars? Here’s a terrific way for them to play with their toy cars and practice number recognition skills at the same time.

Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.

Whatever is stacked in your cupboard can be used to help your child learn how to compare fractions and decimals. A great hands-on math lesson!

Combine art, history and food with this unique project! Your child will make her own butters, and learn a little about Colonial history at the same time

Calling all power-shoppers! This game is a fun way for kids to learn life skills, and flex their math muscles at the same time.

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

Making candles from old candles is easy. Recycle old candle stubs to make a "new" candle, and teach your child about recycling at the same time!