An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

Believe it or not, the common spud has enough electrochemical energy to power a small digital clock.

In this game, players will learn interesting facts about animal adaption and practice them using a fun matching card game!

Science fair project in which you will start a fire from scratch without using matches or a lighter.

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

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

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

In this fun experiment, we'll find out how color affects heat absorption!

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

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

This simple experiment serves as an introduction to the greenhouse effect.

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

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

Will the shape of an ice cube impact how fast the ice melts?

This science fair project idea measures and compares effects of chemical weathering, specifically carbonation, on different kinds of rocks.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

This science fair project idea determines the operating differences of AAA, AA, C, D batteries all with a 1.5 volt rating.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

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

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.