This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

This science fair project idea identifies trees using a dichotomous key.

This science fair project idea explores alcoholic fermentation at work by making your own soda.

This science fair project idea deals with the qualities of shade on a sunny day.

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.

This science fair project idea provides evidence that air is everywhere and takes up space.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

Check out this cool science fair project on identifying rocks and minerals for kids.