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Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

This science fair project teaches students the differences between fruits and vegetables.

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.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

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.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

In this activity, your student will be invited to build a chair out of building blocks that is designed to meet the specific size and shape of a small doll or toy figure.

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

This science fair project idea examines which type of insulation holds in the most heat.

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

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot navigate around several obstacles.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

This science fair project idea investigates the difference in reaction times between boys and girls.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

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

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.