Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

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

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

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

In this project students experiment with making music using only glasses of water.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

Discover whether a metal will expand under hot water.

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

Teach your child how butter is created by shaking up cream the old-fashioned way.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Got a birdwatcher on your hands? Bring the birds to your backyard by making a zany bird feeder using an orange and some string.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this 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.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

Bring a little science to your third grader's Christmas as you test out his sense of smell by exposing him to common Christmas scents found in your kitchen.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

This science fair project idea explores substances that cause a bubble to last longer.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

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

This science fair project idea investigates if webbed feet help a duck (and others) swim.

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