In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

Liven up a lesson about graphing by helping your third grader compile a bar graph from his classmates' birthday data.

Create a graph based on the interests of family member's to see who has what in common. Your child will practice her math skills and get to know the family!

Graph are a great way to organize information. Your child will get to practice graphing by creating a bar graph and a pictorial graph of her friend's names.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

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

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Okay, engaging in a graphing activity may sound ho-hum, but if you use fun data, it changes the picture entirely.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Delay your child's sugar overload, and develop his critical thinking skills, by doing some "sweet sorting" of his Halloween treasures!

Challenge your third-grader to sharpen her new math skills--and maybe do the planet a favor, too.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

Find out whether a longer airplane will fly farther or a wider paper airplane.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

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

Make math fun and easy with this activity that challenges your child to use their addition and multiplication skills to win a race!

This science fair project idea investigates how color affects temperature.

This science fair project idea examines which type of insulation holds in the most heat.

Is your third grader bombing around on a bike these days? Here's a way to put all that fun time together with some math learning, too.

This science fair project idea investigates how the shape of an object affects drag.

Create a face of a person or animal on a small terra cotta flower pot and grow herbs or a flowered plant for their hair! As the herbs grow, the hair grows.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

This science fair project idea explores how length affects the weight a bridge can hold.

Hone observational skills and introduce the basics of data interpretation with this data gathering activity all about the different colors people wear.

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.