In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

This science fair project idea provides evidence that air is everywhere and takes up space.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

This science fair project idea examines whether boys and girls differ in reflexes.

This science fair project idea investigates the difference in reaction times between boys and girls.

Create a string of paper jack-o'-lanterns with this simple Halloween paper craft!

This science fair project idea produces sounds by creating vibrations using different objects.

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

Reuse old Christmas cards by showing your fourth grader how to weave strips of them together to create new and unique woven holiday cards!

This science fair project idea produces varying pitches of sound.

All it takes is some colored felt fabric, a needle, thread, and a few beads and your daughter can make decorative felt pinwheels!

Your child can create a special winter headband with the help of some white felt and a length of silver ribbon.

Don't despair if numerators and denominators seem like a bore to your child. This colorful collage is sure to show him the brighter side of fractions.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Have a young architect or designer on your hands? Here's an easy activity for him to learn the basics of landscape and architecture while having fun!

Boost your child's imagination and creativity by having her design her own deck of trading cards.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

Celebrate Kwanzaa with your fourth grader, or introduce them to a new cultural practice, by showing them how to weave a Kwanzaa mat out of an ordinary paper bag!

Let your fifth grader use his wits to challenge friends to complete their labyrinthine book of mazes!

Looking for a fun summer activity to capture all your vacation memories? Create a summer scrapbook with your child!

Using only straight-line sewing, your fourth can create a nifty felt pencil case perfect for his busy life.

Make this mason jar craft that looks like a glowing snowflake and works like a lantern!

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

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

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

Your fourth grader will love practicing his math facts with this fun computation game.

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

Hair ties don't have to be plain old elastic circles. Your child can decorate her hair with beaded hair bands that add flair to her hair!

Greek mythology offers up some of the most epic tales ever. This Greek mythology tree activity introduces students to some of the main characters in Greek mythology.