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In this science fair project, students test how objects float and sink in liquids of different densities.

This science fair project idea investigates the relationship between memory and age.

Disguise a lesson focused on shape recognition as a Santa collage, and your pre-kindergartener won't even realize she's learning!

This classic children's game demonstrates how sound travels through air vs. through a solid.

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

Play with, explore, and describe everyday objects with your preschooler to get her ready to learn basic math skills and concepts.

Kids use applied math to build and test a parabolic mirror solar hot dog cooker in this cool engineering science fair project idea for middle school.

Give your child a glimpse of how another set of students approach reading by teaching him how the blind use braille.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

Help your preschooler grasp the concept of ordering and sequence while teaching him valuable vocabulary with simple activities around the house.

For some good "green" fun, pull out your blender. A spinach smoothie?! You better believe it! And kids will not only slurp it up, they"ll beg for seconds.

Check out this interactive number line. It's a great way to strengthen your preschoolers understanding of basic numbers and the numerals that represent them.

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

In this science fair project, students create their own miniature salt flats at home.

Improve your preschooler's knowledge of the alphabet by playing games with your own homemade wooden letters!

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

Help your preschooler craft her very own announcement to celebrate the special transition to "big kids" school!

This science fair project idea examines the actual cost of three household light bulbs by testing energy consumption.

While building his own croquet set, your kindergartener will use both his math an fine motor skills and as he plays he'll improve his hand-eye coordination.

How do crystals form? In this science fair project, students will use three different saturated solutions to see how different minerals form crystals over time.

Thermometers are how we measure temperature, and we've all heard the terms "centigrade" and "Fahrenheit" tossed around, but what do they really mean?

As your child plays photographer, snapping pictures around the yard, he'll also be practicing recognizing letter sounds, which will help him learn to read.

Got a kid who's learning to read? Looking for a new board game to add to the bunch? With a little help from your child, you can make a game of your own!

Your preschooler will not realize she's practicing her counting skills while playing with this interactive cereal abacus!

This science fair project idea determines which flower lasts the longest.

Here's a brain-challenging treasure hunt for your third grader, calling upon math skills with money and with decimals!

Introduce the idea of measuring weight to your preschooler or kindergartener by making a fun and easy-to-use bungee scale to weigh household objects.

Help your child work on her code breaking and writing skills while covertly developing her analytical thinking skills with this fun activity.

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

Here's a creative preschool activity to make a crown, and build in some phonics practice while you're at it.