Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

Gather the neighborhood children together and practice graphing with this backyard tournament!

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

To make this unique Valentine's Card, all your child will need is his creative mind, some paper, and a pencil.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

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.

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

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.

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

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

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

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Most kids love to play spy. Here's a way to have fun with mysterious codes while mastering an ordinary, necessary skill: first grade spelling.

This year, celebrate Father's Day with three hilarious outdoor family games.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Teach your child Morse code, and a little bit of history that she'll pick up in a flash!

This science fair project teaches students about wilting and browning of salad greens.