This science fair project idea determines the probability of a coin landing heads or tails.

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

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

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

Do heavier objects fall faster than lighter ones? Students learn the answer by watching the effect gravity in a vacuum has on a coin and a feather.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

This experiment researches if you gave different amounts of food to mosquito larvae would they grow faster or slower

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

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

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.

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

The actual factors affecting friction may surprise you! Learn about the coefficient of friction and put some trigonometry into practice in this science project.

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.

Learn how matter transmits sound with a simple, hands-on experiment using sand, water and air.

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

In this science fair project, students test how objects float and sink in liquids of different densities.

Science fair project that examines condensation and the conditions needed in order for dew to form.

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

Test the idea that people who wear glasses tend to be more educated. True or false?

see whether all liquids evaporate at the same rate. In other words, does water evaporate at the same rate as juice?

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

Evaluate the ability of a biodegradable dish detergent to increase the penetration of water in hydrophobic soils.

Invite your kindergarten scientist to conduct this color mixing experiment to discover which primary hues make a rainbow of secondary colors.

Try this chemistry experiment with your curious kid and get some "shocking" results!

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

Do different types of oil mix or stack? Find out in this science fair project idea!

In this project students experiment with making music using only glasses of water.