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

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Here's a game your child is sure to love playing with her friends: French Cricket. Just grab a baseball bat and a tennis ball, and you're set.

Illustrate the importance of bicycle safety in this simple 5th grade science experiment. All you need to start are an egg, a Styrofoam ball, and rubber bands.

Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.

Here's an activity that takes fourth grade reading and writing skills beyond the classroom to offer a warm welcome to a new neighbor.

Help your child construct and author a "sempuyo," a traditional Japanese book with accordion-style pages; she will develop her writing and fine motor skills.

Here's an easy project: create a homework helper bookmark so your fourth grader can write down assignments and mark the pages he needs to read.

Encourage the brain-body connection in your child with movement games. This activity will decide who’s got the better moves, throughout the ages of music!

This science fair project idea determines if the temperature of rubber effects how high it bounces.

Develop your child's hand-eye coordination in a fun and engaging way by challenging her to a game of Drop Catch.

Petanque, a traditional French lawn game, is a wonderful activity to entertain groups of kids and help them learn a little bit about other cultures.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

This basketball project explores the best way to make the perfect shot every time.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

What do a pool, a raft and a golf club have in common? They are all integral ingredients in the fun game of Aqua Golf, a great activity for kids of all ages.

Whatever the season, celebrate greenery and growth by helping your child study some delightful spring words.

Invite your child and a few friends to get crabby in this game of soccer with a twist: Instead of running, players "crab crawl" around the playing field.

Try this winter-themed arts and crafts activity for fifth graders: make colorful woolly pompoms! All you need is yarn and stiff cardboard to get started.

Your kid will delight in creating an extraterrestrial vehicle from goods found around the house. There's no telling where her imagination will go!

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

Forget mass-produced, store bought holiday ornaments. Your fifth grader can usher in the holidays by making his own homemade marbled Christmas balls!

Use muffin tins to create a simple, affordable and fun game to help your child practice their vocabulary!

Here's a fun arts and crafts activity that has you and your child creating a book with a secret hollow!