This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

In this project children practice the scientific method while playing with puffy paint.

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

In this science fair project, young children notice and track changes in trees throughout the year.

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.

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

This project makes young children uniquely aware of their sense of touch and its ability to alone give them information about the world around them.

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

This simple project makes young children aware of their sense of smell and its capacity for providing them with information about their world.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

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

Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

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.

In this science fair project, young children will become aware of and have the opportunity to experience the four basic tastes: sweet, sour, salty, and bitter.

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.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

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

This science fair project introduces children to static electricity and the idea that electricity is more than lights and plugs.

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

Get ready for a yummy taste test! Just pour the milk -- and make sure you have some chocolate chip cookies on hand.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

This play-activity causes young children to focus on and become more aware of their sense of hearing and the power of their ears.

Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.