Make sourdough bread...and learn some colonial history and modern science in the process!

This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

It's food. It's Thanksgiving tradition. And guess what: Cranberry Sauce is also science! Try our simple recipe/experiment.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

This experiment that explores water and air pressure will amaze your fifth grader as it appears that a single card is holding water in an upside-down glass.

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

Grow borax crystals and get your child excited about Earth science with this crafty science experiment.

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

This science fair project examines how seeds hitchhike on animals and clothing.

This easy at-home experiment is a great way to "see" science.

This science fair project idea examines liquids of different densities.

This science fair project idea explores which fruit molds the fastest.

Construct batteries that make electricity from fruits with this fun science fair project.

This science fair project idea compares biodiversity between drops of water.

This science project idea examines the effect of microwaving on various objects.

The purpose of this science fair project is to build a basic radio.

This science fair project idea investigates how color affects temperature.

This science fair project idea produces varying pitches of sound.

This science fair project idea researches the effects of acid rain on plant growth.

Check out this cool science fair project on identifying rocks and minerals for kids.

This science fair project idea explores whether white light can be separated into different colors.

This science fair project idea identifies trees using a dichotomous key.

Learn with makes water molecules work with this fun and easy science activity!

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

How do organic materials become soil? This science experiment measures what materials biodegrade.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.