This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.