This project explores the effectiveness of various common household ingredients in cleaning tarnished and oxidized coins.

Here's a math, science, and social studies activity: help your kindergartener become a "coin archaeologist" by examining how different coins look and feel.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

Construct a model of radioactive decay. Learn more about radioactive decay by modeling the process using coin flips.

Learn about the horizontal and vertical motion of a projectile in this cool physics science fair project idea for advanced middle and high school students.

Help your middle schooler improve his observation skills by playing this simple observation and spatial memorization game.

Science fair project that compares leaf pigments of various tree species. Which tree species do you think will have the most pigments and why?