How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

This science fair project will help students learn about non-vascular plants, such as mosses.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Learn about this simple machine and make a pulley of your own to use for fun science trials.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

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

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

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

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

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

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

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