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.

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.

Learn all about balance and motion as your child designs a corn maze!

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

In this activity, your child will learn about a style of gardening that uses moss, also called "kokedama."

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

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

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 the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.

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

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!

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

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

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

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

Learn about different fern fronds with your third grader as you create lacy, natural decorations on your Easter eggs this year.

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.

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

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.

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

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.