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Find out whether packaged seeds actually do expire in this new science fair project idea.

This science experiment has students test whether a snail moves faster on concrete or dirt.

Most parents probably wouldn't mind subtracting 8-9 years off their age. Here's a fun third grade subtraction activity that may do just that.

Create a fun hands-on game to practice long division, using magnetic numbers on a fridge.

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

Okay, engaging in a graphing activity may sound ho-hum, but if you use fun data, it changes the picture entirely.

Teach your kid a fun mathematical magic trick! All you'll need is a deck of cards and basic addition, subtraction, and multiplication skills.

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

Kids will get a kick out of shopping for discounted "kicks" with this creative math game that focuses on percentages.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

This fun activity encourages your child to develop their skills in not only taking measurements, but also in working with the measurements themselves.

Wake up and create a fun, healthy snowman with your learner! As a family, create a snowman on your plate with yogurt, add some snowman accessories, and design a snowy environment.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Here's a super fun game to get in some place value practice with your child!

This is a simple, fast game that you and your child can make together to help him master rounding with decimals.

Use a deck of playing cards to practice place value and other math concepts with your upper elementary child!

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

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

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

Help your kids map the "global footprint" of your family's grocery cart by investigating how far your food travels before landing on your dinner table.

This science fair project investigates why the number of visible stars changes from place to place.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Compare fractions in this two-player math game. The objective of the games is to work together to determine who has created the largest fraction.

In this science fair project, students make their own rain gauge to measure rainfall.

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

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

Graph are a great way to organize information. Your child will get to practice graphing by creating a bar graph and a pictorial graph of her friend's names.