Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

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.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

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