Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

Making your own glass cleaner is easy, effective and inexpensive!

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

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

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

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.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Learn whether writing things down really makes things easier to remember.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

This science fair project idea investigates if fats add to the flavor of food.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

This science fair project idea identifies the properties of soap bubbles and invents a new or improved bubble solution.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

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.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.