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.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

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

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

This science experiment has students test whether a snail moves faster on concrete or dirt.

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

Using a toy race car kids create a visual model of the Doppler Effect.

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

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Hold a magnet marathon! Explore the power of magnets with your kindergartener in this entertaining and simple science game.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

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

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

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

Discover whether cold or hot water from the faucet will boil faster on the stove.

Create your very own scented hand sanitizer that will help your child to keep those nasty germs at bay!

This science fair project teaches students about wilting and browning of salad greens.

This science fair project idea investigates how the shape of an object affects drag.

How do organic materials become soil? This science experiment measures what materials biodegrade.

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