Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

This science fair project idea explores the different properties & interactions of sugar molecules.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

Teach your child how butter is created by shaking up cream the old-fashioned way.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

This science fair project idea explores the different properties of matter.

This science fair project idea explores the egg's thin membrane.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

This science fair project idea determines what household items are good conductors of electricity.