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 science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

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

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

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

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.

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.

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

Will increasing the amount of salt in water effect how slow or fast the water freezes?

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 examines whether boys and girls differ in reflexes.

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.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

How well can people recall what they have observed. Test your knowledge in this fun experiment.