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.

Why are some pennies shiny and others dark and dull? Find out with this cleaning copper coins experiment, which transforms dark pennies to bright ones.

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.

In this activity, young learners will make a balance using a plastic hanger and weigh a variety of small objects using candy corn.

Invite your middle schooler to bungee jump ... with eggs! This experiment will demonstrate Newton's laws of physics in an entertaining way.

Satisfy your kindergartener's fascination of different sounds with this easy science project, where they'll use their ears instead of their eyes to identify sounds!

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

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