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.

This project compares the strength of one, two, and three-ply toilet paper.

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

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!

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

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.

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

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!

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

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

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!

How powerful is the reaction between baking soda and vinegar? Find out here!

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

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

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

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

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

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

Introduce your child to the amazing, almost magical phenomenon of static electricity!

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

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

Have your child kick off their summer vacation by making a miniature water slide!

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

In this design challenge, your child will create a parachute for a small toy using typical household items.

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.