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

How do crystals form? In this science fair project, students will use three different saturated solutions to see how different minerals form crystals over time.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

Plants and light seem to be good buddies, but how far does the friendship really go?

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

Plants help keep a house cool! This article includes step-by-step instructions for completing this fun and interesting science experiment.

In this science fair project idea, kids make water dance on the surface of a hot pan with the Leidenfrost Effect.

Use an Elihu Thomson apparatus, also known as a ring launcher, to learn about electromagnetism concepts and the properties of various metals.

This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

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.

Explore concepts in current and coltage with these Van de Graaff generator experiments.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

If you hold a fire up to a balloon, it pops instantly. What if you could prevent this from happening? In this project, we do just that.

Learn about the growing app design field by designing a new or improved app for smartphones.

Discover whether cheap saline solution bottle cleans and disinfects just as well as more expensive kinds formulated with different ingredients.

Learn about endothermic and exothermic reactions and energy exchange by experimenting with temperature change in chemical reactions.

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

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

This science fair project examines the vein structure (venation) of leaves in order to determine the class of the plant sample.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

In this science fair project on the relationship between distance and time, kids explore the behavior of gravitational acceleration through direct observation.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.