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

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

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

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 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.

Plants need water to grow. In this project we learn how plants transport water from their roots to their leaves

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

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

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!

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.

The objective of this science fair project is to investigate salt water density.

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

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

This science fair project idea investigates whether air has mass and weight.

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.

In this project, a basketball containing different psi is dropped to see how well it bounces.

Making a calendar is a great way for third graders to identify those words that are always capitalized. Here's how to get started.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

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

Take a bite out of these sticky-sweet banana ghosts to create a Halloween memory your kid's taste buds will never forget.

Test your learner's knowledge of Barack Obama by challenging your child to complete a crossword puzzle about the President after reading a short biography.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

Help your child work on her sewing skills by making one-of-a-kind luggage tags for everyone in the family.

Looking for an on-the-go game that can be played anywhere, anytime? Put down the hangman and tic-tac-toe. Here's a new one for the whole family!