This do-it-anywhere guessing game helps reinforce number concepts. And it's a blast to play.

Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

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

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

This very physical game gets math off the page and into the real world-- and it works on number sense and estimation, key skills for kindergarten readiness.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

This project concerns activity happening millions of miles away, on the sun.

Discover if temperature settings in a fridge make a drastic difference in terms of bacterial growth.

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

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

Check out this fun science project idea to explore different types of starches and learn how removing starch affects the quality and taste of food.

The objective of this science fair project is to examine the cleanliness of salad preparation techniques.

This science fair project idea focuses on saturated and unsaturated lipids (fats and oils).

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

Practice measurement using centimeters in this fun math race designed for your second grade student!

Practice conversions within the metric system in this fun math card game for third graders.

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

Test products which claim to reduce wrinkles, and determine which is the most effective. Test effectiveness over three weeks, using a sample of volunteers.

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

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

In this science fair project, students will use methylene blue to study the presence of aerobic bacteria in milk.

The objective of this science fair project idea is to determine whether frozen vegetables have more nutrients than canned vegetables.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

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.

This first grade science activity is great for winter! Your child will grow and observe her own amaryllis bulb, keeping a journal of her scientific findings.

Plants help keep a house cool! This article includes step-by-step instructions for completing this fun and interesting science experiment.

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!

This science fair project idea investigates food preference of birds.

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

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